twamers wrote:fotosean wrote:n057 wrote:fotosean wrote:LtColDavenport wrote:And if you would like just to try, see how many image you can write. Format both CFe and SD, set your normal setting that you just wrote and shoot until it start to slow see and see how many picture it got. If it will be around 25-30 than that's not me, but if it may be more, there may be something strange with mine.Ok, I tried this:My Delkin card I'm using in the D500 is not exactly their top o' the line speed merchant; I now wonder if getting a Delkin Black is now worth the investment, thanks for helping me to spend more $$$I am now also curious what a decent UHS-II V90 card will do in the 2nd slot if I still want to continue doing RAW + JPEG.If you are after the most shots in one burst while writing to both the XQD card ant the SD card, forget about it. Any SD card will always slow you down before you hit 200 shots. If you want 200 shots, use just one XQD card and write both RAW and JPG to that one card.with the last firmware update, not sure why you would still be using an XQD card. Even the cheapest and crappiest CFE Type B card runs rings around XQD at this point.I still think if I invest in a decent UHS-II card the camera will write to the slower slot 2 faster than my current setup. The camera is that capable; to your point, the buffer kicks in due to the cards in place.Yes, XQD is expensive, but so is a D500.Again, why XQD? Delkin Green and Delkin Black CF-E type B nowadays are affordable and MUCH faster. The D500 writes to cards at a blazing speed, provided the cards are capable of handling it.My understanding on the cf cards is that the firmware update in the D500 allows the use of these cards. But it does not give more speed - the speed benefits of cf cards are limited by the hardware inside the D500 which is now quite old.Correct. You may benefit a little bit if you XQD won’t reach the buffer top write speed but that’s it. You may also benefit from download to PC.The main reason people might want to use cf over xqd nowadays is that xqd may become harder to get as cf cards become more commonplace. This hardware limitation also applies to D850 l believe for the same reason. But by doing the firmware update Nikon are making sure owners can use D500 without worrying about finding xqd.And that’s nice.I continue to use xqd cards - Sony g 440 mbs l think and as l have enough of these for the Nikon's that use them for now I've no need of cf cards - but l may buy cf in future if l need to replace any of my xqd cards - nice to know Nikon provided the firmware update. I also use only Sony g xqd cards and the sd card slot is left empty so as not to slow buffer - been using for sport without any problems since 2016. D500 = fantastic camera.

LtColDavenport wrote:fotosean wrote:n057 wrote:It is the card, not the buffer.The magic of the "endlesss buffer" in the D500 resides in the write speed of XQD (or CF Express). The naturel size of the buffer is what you see when you half press the shutter button. It appears in the "Number of shots remaining" section of the "Control Panel". In my case, set to RAW only, Number of shots remaining show 350 with a Lexar 2933 32 GB XQD card, When I half-press the shutter button, it shows "r29". But because th D500 can write to the card at breakneck speed, the buffer never fills, it empties before topping out. The D500 stops after reaching 200 shots by design, not because the buffer is full.Not so with an SD card, those do not accept the maximum speed of the D500, so the buffer fills, and the D500 slows its pace.As for the firmware upgrade issued by Nikon, it was because there was a problem with the early SD cards, UHS II being in their infancy then, they would throw an error in fast machines, and the D500 would jam. So Nikon issued a "fix" to reset the D500 to a slower pace when it tried to write to SD. Simultaneously, Lexar redesigned their UHS II cards to not throw an error. But the 200 shot magic number cannot be reached.If you write simultaneously to both slots, your maximum will be limited by he slower card. If you set SD to Overflow, since The D500 only writes there after the XQD card is full, you will not be as impacted.I never use the SD slot, it is empty. Having lived before with single card Compact Flash cameras, I was not worried with living with one XQD slot. I had a Garmin GPS with an accessory SD slot, and the card there laminated on me, so I did not have any slow SD card to use, and never bothered to buy any.JC Some cameras, some lenses, some computers+1 here. Exactly correct. This is why I went JPEG only on the 2nd slot and stopped using the 2nd slot as the backup slot. With JPEG only as the 2nd slot, I never have a buffer issue, and I shoot maybe 2-3 second bursts for BIF/wildlife with the D500 and 200-500mm. Probably should put a UHS-II card in the 2nd slot, but never did as it's never been a problem.But...I am also not in backup mode.I set my camera in RAW-Primary and JPG-Secondary.I am not writing both RAW and JPG in both cards.When I unload pictures from the XQD there are only .nef on there. And when I take the SD I see only .jpg files.Hence all my doubts. An UHS-II should be more than capable of writing JPGs onto it, at least more than 25 for sure IMO, so I am trying to understand if I am doing something wrong, if it may be card or whatever, it just feels strange.If you write RAW to XQD and JPG to UHS II, everytime you capture an image, it goes RAW to XQD and JPG to UHS II. So you are writing to both, each one in turn.JC Some cameras, some lenses, some computers

fotosean wrote:n057 wrote:fotosean wrote:LtColDavenport wrote:And if you would like just to try, see how many image you can write. Format both CFe and SD, set your normal setting that you just wrote and shoot until it start to slow see and see how many picture it got. If it will be around 25-30 than that's not me, but if it may be more, there may be something strange with mine.Ok, I tried this:My Delkin card I'm using in the D500 is not exactly their top o' the line speed merchant; I now wonder if getting a Delkin Black is now worth the investment, thanks for helping me to spend more $$$I am now also curious what a decent UHS-II V90 card will do in the 2nd slot if I still want to continue doing RAW + JPEG.If you are after the most shots in one burst while writing to both the XQD card ant the SD card, forget about it. Any SD card will always slow you down before you hit 200 shots. If you want 200 shots, use just one XQD card and write both RAW and JPG to that one card.with the last firmware update, not sure why you would still be using an XQD card. Even the cheapest and crappiest CFE Type B card runs rings around XQD at this point.I already have enough XQD cards to last a few years. The D500 was designed originally for XQD and has the hardware to use it efficiently. But a division of Sony is the main owner of XQD patents, got greedy and wanted so many royalties that few card manufacturers built them and the price remained high. CFE was designed to be faster but requires two channel hardware, the D500 remains single channel. The Nikon firmware update allows use of CFE but there is no performance gain because te D500 hardware lacks the two channels needed.Over time, if my XQD cards become defective and unusable, I'll move over to CFE.I still think if I invest in a decent UHS-II card the camera will write to the slower slot 2 faster than my current setup. The camera is that capable; to your point, the buffer kicks in due to the cards in place.Yes, XQD is expensive, but so is a D500.Again, why XQD? Delkin Green and Delkin Black CF-E type B nowadays are affordable and MUCH faster. The D500 writes to cards at a blazing speed, provided the cards are capable of handling it.The D500 will not be faster with CFE. The main benefit for the D500 is that there will be a better supply of available cards, if your existing XQD cards become damaged.JC Some cameras, some lenses, some computers

n057 wrote:LtColDavenport wrote:fotosean wrote:n057 wrote:It is the card, not the buffer.The magic of the "endlesss buffer" in the D500 resides in the write speed of XQD (or CF Express). The naturel size of the buffer is what you see when you half press the shutter button. It appears in the "Number of shots remaining" section of the "Control Panel". In my case, set to RAW only, Number of shots remaining show 350 with a Lexar 2933 32 GB XQD card, When I half-press the shutter button, it shows "r29". But because th D500 can write to the card at breakneck speed, the buffer never fills, it empties before topping out. The D500 stops after reaching 200 shots by design, not because the buffer is full.Not so with an SD card, those do not accept the maximum speed of the D500, so the buffer fills, and the D500 slows its pace.As for the firmware upgrade issued by Nikon, it was because there was a problem with the early SD cards, UHS II being in their infancy then, they would throw an error in fast machines, and the D500 would jam. So Nikon issued a "fix" to reset the D500 to a slower pace when it tried to write to SD. Simultaneously, Lexar redesigned their UHS II cards to not throw an error. But the 200 shot magic number cannot be reached.If you write simultaneously to both slots, your maximum will be limited by he slower card. If you set SD to Overflow, since The D500 only writes there after the XQD card is full, you will not be as impacted.I never use the SD slot, it is empty. Having lived before with single card Compact Flash cameras, I was not worried with living with one XQD slot. I had a Garmin GPS with an accessory SD slot, and the card there laminated on me, so I did not have any slow SD card to use, and never bothered to buy any.JC Some cameras, some lenses, some computers+1 here. Exactly correct. This is why I went JPEG only on the 2nd slot and stopped using the 2nd slot as the backup slot. With JPEG only as the 2nd slot, I never have a buffer issue, and I shoot maybe 2-3 second bursts for BIF/wildlife with the D500 and 200-500mm. Probably should put a UHS-II card in the 2nd slot, but never did as it's never been a problem.But...I am also not in backup mode.I set my camera in RAW-Primary and JPG-Secondary.I am not writing both RAW and JPG in both cards.When I unload pictures from the XQD there are only .nef on there. And when I take the SD I see only .jpg files.Hence all my doubts. An UHS-II should be more than capable of writing JPGs onto it, at least more than 25 for sure IMO, so I am trying to understand if I am doing something wrong, if it may be card or whatever, it just feels strange.If you write RAW to XQD and JPG to UHS II, everytime you capture an image, it goes RAW to XQD and JPG to UHS II. So you are writing to both, each one in turn.JC Some cameras, some lenses, some computersYes. And…the JPG should be easily handled by the SD, I can’t understand why it takes so much.It may be because of the JPG processing time? Not sure… but funnily enough, I had a better burst rate writing RAW in both rather than RAW on XQD and JPG on the SD, strange.

In my D500 I have a 128GB Lexar Pro SD XC V60-II, rated at 250MB/s.With the camera set to JPEG, LARGE, FINE* (the highest size and quality setting), the buffer counter shows r55 with the shutter button half-press.So far I had never run a test to see when the buffer overflowed. I just did it, shooting continuosly at 10fps (the same static subject, so no focus re-acquiring came into play).The camera fired all the way for 16 seconds straight before slowing down, capturing exactly 160 frames.As far as I am concerned this is WAY more I will ever need 😃.For completeness I will mentionI have no card in the XQD slot.

By the way, I run the same test, but this time setting the camera to RAW + JPEG, LARGE, FINE*.Buffer reading with shutter button half-press is r12, 30 frames before slow down. Still plenty for my needs when I shoot RAW + JPEG.I believe this is consistent with the numbers posted by the OP. We may even have the same card.

LtColDavenport wrote:n057 wrote:LtColDavenport wrote:fotosean wrote:n057 wrote:It is the card, not the buffer.The magic of the "endlesss buffer" in the D500 resides in the write speed of XQD (or CF Express). The naturel size of the buffer is what you see when you half press the shutter button. It appears in the "Number of shots remaining" section of the "Control Panel". In my case, set to RAW only, Number of shots remaining show 350 with a Lexar 2933 32 GB XQD card, When I half-press the shutter button, it shows "r29". But because th D500 can write to the card at breakneck speed, the buffer never fills, it empties before topping out. The D500 stops after reaching 200 shots by design, not because the buffer is full.Not so with an SD card, those do not accept the maximum speed of the D500, so the buffer fills, and the D500 slows its pace.As for the firmware upgrade issued by Nikon, it was because there was a problem with the early SD cards, UHS II being in their infancy then, they would throw an error in fast machines, and the D500 would jam. So Nikon issued a "fix" to reset the D500 to a slower pace when it tried to write to SD. Simultaneously, Lexar redesigned their UHS II cards to not throw an error. But the 200 shot magic number cannot be reached.If you write simultaneously to both slots, your maximum will be limited by he slower card. If you set SD to Overflow, since The D500 only writes there after the XQD card is full, you will not be as impacted.I never use the SD slot, it is empty. Having lived before with single card Compact Flash cameras, I was not worried with living with one XQD slot. I had a Garmin GPS with an accessory SD slot, and the card there laminated on me, so I did not have any slow SD card to use, and never bothered to buy any.JC Some cameras, some lenses, some computers+1 here. Exactly correct. This is why I went JPEG only on the 2nd slot and stopped using the 2nd slot as the backup slot. With JPEG only as the 2nd slot, I never have a buffer issue, and I shoot maybe 2-3 second bursts for BIF/wildlife with the D500 and 200-500mm. Probably should put a UHS-II card in the 2nd slot, but never did as it's never been a problem.But...I am also not in backup mode.I set my camera in RAW-Primary and JPG-Secondary.I am not writing both RAW and JPG in both cards.When I unload pictures from the XQD there are only .nef on there. And when I take the SD I see only .jpg files.Hence all my doubts. An UHS-II should be more than capable of writing JPGs onto it, at least more than 25 for sure IMO, so I am trying to understand if I am doing something wrong, if it may be card or whatever, it just feels strange.If you write RAW to XQD and JPG to UHS II, everytime you capture an image, it goes RAW to XQD and JPG to UHS II. So you are writing to both, each one in turn.JC Some cameras, some lenses, some computersYes. And…the JPG should be easily handled by the SD, I can’t understand why it takes so much.It may be because of the JPG processing time? Not sure… but funnily enough, I had a better burst rate writing RAW in both rather than RAW on XQD and JPG on the SD, strange.???Try writing JPG to XQD and it will handle 10 FPS. The thing is, each card type has a different *write* speed. The image is fed to the buffer very fast. But then it has to be dumped to the buffer to the card. One look at the *write* speed of the card tells you what you should expect.If the card cannot accept the rate at which the buffer empties, the buffer fills up, and you get the low figures that you are seeing.Maybe this *old* thread will helphttps://www.dpreview.com/forums/thread/4215980JC Some cameras, some lenses, some computers

Another old video, from Lexar, showing varying performance wihth various Lexar XQD and SD cards.https://www.youtube.com/watch?v=01tB8hs1iCoJC Some cameras, some lenses, some computers

CaptainAmerica wrote:In my D500 I have a 128GB Lexar Pro SD XC V60-II, rated at 250MB/s.With the camera set to JPEG, LARGE, FINE* (the highest size and quality setting), the buffer counter shows r55 with the shutter button half-press.So far I had never run a test to see when the buffer overflowed. I just did it, shooting continuosly at 10fps (the same static subject, so no focus re-acquiring came into play).The camera fired all the way for 16 seconds straight before slowing down, capturing exactly 160 frames.As far as I am concerned this is WAY more I will ever need 😃.For completeness I will mentionI have no card in the XQD slot.But, you are speaking purely about JPG, right?You are not writing both RAW and JPG, correct?

CaptainAmerica wrote:By the way, I run the same test, but this time setting the camera to RAW + JPEG, LARGE, FINE*.Buffer reading with shutter button half-press is r12, 30 frames before slow down. Still plenty for my needs when I shoot RAW + JPEG.I believe this is consistent with the numbers posted by the OP. We may even have the same card.But writing both RAW and JPG on the single SD card, or splitting RAW on XQD and JPG on SD?Given our previous answer that said with SD only. Because if you would get that number just on the single SD card, there's something really wrong if I get the same number splitting the file into the two cards.

n057 wrote:LtColDavenport wrote:Yes. And…the JPG should be easily handled by the SD, I can’t understand why it takes so much.It may be because of the JPG processing time? Not sure… but funnily enough, I had a better burst rate writing RAW in both rather than RAW on XQD and JPG on the SD, strange.???Try writing JPG to XQD and it will handle 10 FPS. The thing is, each card type has a different *write* speed. The image is fed to the buffer very fast. But then it has to be dumped to the buffer to the card. One look at the *write* speed of the card tells you what you should expect.If the card cannot accept the rate at which the buffer empties, the buffer fills up, and you get the low figures that you are seeing.Maybe this *old* thread will helphttps://www.dpreview.com/forums/thread/4215980JC Some cameras, some lenses, some computersI am pretty sure you are consistently misunderstanding what I am trying to say given your answers.SD card write speed I don't think it is simply the answer here but there's something else going on, I am pretty sure. Probably not something I can do about it, but it is not simple the "SD it is slow".Considering these facts:How can you explain that when writing RAW-->XQD and JPG-->SD(UHS-II):Again, for what it is worth, with my X-Pro2, I find it more consistent. It has SD slot 1 being UHS-II, and SD slot 2 being UHS-I. If I shoot RAW Backup I get worst performance than shooting RAW on slot-1 and JPG on slot-2, as expected, being the JPG 1/3 the size of the raw, it can than keep up as almost the same paste as the UHS-II that has 2 or 3 time the bandwidth.Why with the D500 I get the opposite? The only thing I can think of, it may be JPG processing, but damn...it is heavier than write a RAW in triple the size? But if that's the point, why this behavior doesn't happen when shooting only JPG? It simply seems strange to me...For what it is wroth, here's anotherthreadI found with a user asking basically the same thing as me, wondering if there is some problem with his cards, same as me.I think I can't explain it any better than this honestly.

LtColDavenport wrote:CaptainAmerica wrote:In my D500 I have a 128GB Lexar Pro SD XC V60-II, rated at 250MB/s.With the camera set to JPEG, LARGE, FINE* (the highest size and quality setting), the buffer counter shows r55 with the shutter button half-press.So far I had never run a test to see when the buffer overflowed. I just did it, shooting continuosly at 10fps (the same static subject, so no focus re-acquiring came into play).The camera fired all the way for 16 seconds straight before slowing down, capturing exactly 160 frames.As far as I am concerned this is WAY more I will ever need 😃.For completeness I will mentionI have no card in the XQD slot.But, you are speaking purely about JPG, right?You are not writing both RAW and JPG, correct?Yes, only JPEG and writing only to the SD

LtColDavenport wrote:CaptainAmerica wrote:By the way, I run the same test, but this time setting the camera to RAW + JPEG, LARGE, FINE*.Buffer reading with shutter button half-press is r12, 30 frames before slow down. Still plenty for my needs when I shoot RAW + JPEG.I believe this is consistent with the numbers posted by the OP. We may even have the same card.But writing both RAW and JPG on the single SD card, or splitting RAW on XQD and JPG on SD?Given our previous answer that said with SD only. Because if you would get that number just on the single SD card, there's something really wrong if I get the same number splitting the file into the two cards.Writing both RAW and JPEG on the SD card. I do not have a XQD card.

n057 wrote:LtColDavenport wrote:Yes. And…the JPG should be easily handled by the SD, I can’t understand why it takes so much.It may be because of the JPG processing time? Not sure… but funnily enough, I had a better burst rate writing RAW in both rather than RAW on XQD and JPG on the SD, strange.???Try writing JPG to XQD and it will handle 10 FPS. The thing is, each card type has a different *write* speed. The image is fed to the buffer very fast. But then it has to be dumped to the buffer to the card. One look at the *write* speed of the card tells you what you should expect.If the card cannot accept the rate at which the buffer empties, the buffer fills up, and you get the low figures that you are seeing.Maybe this *old* thread will helphttps://www.dpreview.com/forums/thread/4215980JC Some cameras, some lenses, some computersI am pretty sure you are consistently misunderstanding what I am trying to say given your answers.SD card write speed I don't think it is simply the answer here but there's something else going on, I am pretty sure. Probably not something I can do about it, but it is not simple the "SD it is slow".Considering these facts:How can you explain that when writing RAW-->XQD and JPG-->SD(UHS-II):Again, for what it is worth, with my X-Pro2, I find it more consistent. It has SD slot 1 being UHS-II, and SD slot 2 being UHS-I. If I shoot RAW Backup I get worst performance than shooting RAW on slot-1 and JPG on slot-2, as expected, being the JPG 1/3 the size of the raw, it can than keep up as almost the same paste as the UHS-II that has 2 or 3 time the bandwidth.Why with the D500 I get the opposite? The only thing I can think of, it may be JPG processing, but damn...it is heavier than write a RAW in triple the size? But if that's the point, why this behavior doesn't happen when shooting only JPG? It simply seems strange to me...For what it is wroth, here's anotherthreadI found with a user asking basically the same thing as me, wondering if there is some problem with his cards, same as me.I think I can't explain it any better than this honestly.I can't answer your question as l have never had an SD card in my D500 since l bought it in 2016. Why don't you just give Nikon Support a call and ask them to help you?

More on this also in this thread:https://www.fredmiranda.com/forum/topic/1472198See specifically the last post.

CaptainAmerica wrote:LtColDavenport wrote:CaptainAmerica wrote:By the way, I run the same test, but this time setting the camera to RAW + JPEG, LARGE, FINE*.Buffer reading with shutter button half-press is r12, 30 frames before slow down. Still plenty for my needs when I shoot RAW + JPEG.I believe this is consistent with the numbers posted by the OP. We may even have the same card.But writing both RAW and JPG on the single SD card, or splitting RAW on XQD and JPG on SD?Given our previous answer that said with SD only. Because if you would get that number just on the single SD card, there's something really wrong if I get the same number splitting the file into the two cards.Writing both RAW and JPEG on the SD card. I do not have a XQD card.Well, so this is very interesting. Basically you are getting the same performance as me writing RAW and JPG on separate cards. That I think really show a bottleneck some where, not in bandwidth of the card for sure.Thanks for the information.

twamers wrote:I can't answer your question as l have never had an SD card in my D500 since l bought it in 2016. Why don't you just give Nikon Support a call and ask them to help you?Honestly, I have given up with official support with any kind when I just ask "strange" stuff, they basically give you a bunch of FAQ answer and if you insist that nothing works, depends on the company but more or less they tell you to send in for repair.Anyway, I don't have much to lose, I could as well write an e-mail and see what they answer.

I just found anotherold threadtalking about the same behavior, it is the third (I think) and it end "abruptly" (again) with no real explanation or solution.I will leave down here a piece of the thread:So... Very interesting.My findings with JUST a Lexar XQD 2933 64Gb are:- RAW only. 200 images before a pause (camera limits this of course)- JPEG only. 200 images before same camera imposed limit stops the capture.- RAW + JPEG Small Basic. About 57-58 images before camera slows.- RAW + JPEG Large Fine*. About 32-33 imagesSo that looks about the same as yours.Now with ONLY using a SanDisk Extreme Pro SDXC II (280Mb/s) 64Gb - i.e. Latest and fastest SanDisk Card:- RAW only. 50-51 images- RAW + JPEG Small Basic. About 40-41 images- RAW + JPEG Large Fine*. About 29 imagesBasically, when writing RAW and JPEG, both on the same card, it got a result 10% worst, even if the that SD card was less than half the speed of that XQD used. So that's something else going on other than card speed, otherwise there should be a much greater difference. Maybe it can't even be image processing as JPG test got all pretty much the top 200 frames. And if shooting JPEG only in max quality in Both XQD and SD (Backup Mode), again, got much better results. So don't know what to think honestly...So end of the story, if you want to write onbothcards (an XQD and an SD), for whatever may be your reason, I feel pretty confident in saying that the max you can get it should be something around around 40 to 50 frames, while if shooting at max quality and RAW+JPG be prepared at a max of 20-ish frame.Moreover, as personally tested (even if I may have dove something wrong), if using max quality in both RAW 14-bit lossless + Large and JPEG FINE* Large, there is little to no difference in using an SD UHS-I or UHS-II v60, again, for some unknown reason.Unless someone has hard fact (that can be replicated) to prove this wrong or any insight on the "whys" this kind of behavior (that, apart from Nikon, at this point I doubt anyone will knows), I think I can end this thread.Thanks to anyone that took their time testing it for me, very kind.But if anyone would like to continue talking about it, I will happily read all answers.

LtColDavenport wrote:I just found anotherold threadtalking about the same behavior, it is the third (I think) and it end "abruptly" (again) with no real explanation or solution.I will leave down here a piece of the thread:So... Very interesting.My findings with JUST a Lexar XQD 2933 64Gb are:- RAW only. 200 images before a pause (camera limits this of course)- JPEG only. 200 images before same camera imposed limit stops the capture.- RAW + JPEG Small Basic. About 57-58 images before camera slows.- RAW + JPEG Large Fine*. About 32-33 imagesSo that looks about the same as yours.Now with ONLY using a SanDisk Extreme Pro SDXC II (280Mb/s) 64Gb - i.e. Latest and fastest SanDisk Card:- RAW only. 50-51 images- RAW + JPEG Small Basic. About 40-41 images- RAW + JPEG Large Fine*. About 29 imagesBasically, when writing RAW and JPEG, both on the same card, it got a result 10% worst, even if the that SD card was less than half the speed of that XQD used. So that's something else going on other than card speed, otherwise there should be a much greater difference. Maybe it can't even be image processing as JPG test got all pretty much the top 200 frames. And if shooting JPEG only in max quality in Both XQD and SD (Backup Mode), again, got much better results. So don't know what to think honestly...So end of the story, if you want to write onbothcards (an XQD and an SD), for whatever may be your reason, I feel pretty confident in saying that the max you can get it should be something around around 40 to 50 frames, while if shooting at max quality and RAW+JPG be prepared at a max of 20-ish frame.Moreover, as personally tested (even if I may have dove something wrong), if using max quality in both RAW 14-bit lossless + Large and JPEG FINE* Large, there is little to no difference in using an SD UHS-I or UHS-II v60, again, for some unknown reason.Unless someone has hard fact (that can be replicated) to prove this wrong or any insight on the "whys" this kind of behavior (that, apart from Nikon, at this point I doubt anyone will knows), I think I can end this thread.Thanks to anyone that took their time testing it for me, very kind.But if anyone would like to continue talking about it, I will happily read all answers.Way back in 2016, after doing a couple of 200 shot "tests", I decided not to waste shutter life doing those tests forever, especially since I had no intent whatsoever to hobble the D500 with an SD card. All available information at the time pointed to the fact that I would never fill the buffer with an XQD card, shooting RAW. On the occasions where I feel Snapbridge would be useful, I just shoot RAW + JPG on the XQD card.You are late to the party, still, get whatever card fills your fancy, go out and enjoy your D500JC Some cameras, some lenses, some computers