SanDisk Extreme PRO 64GB up to 95MB/s UHS-I/U3 SDXC Flash Memory Card - SDSDXPA-064G-X46

I haven't done any computer benchmarking or anything of that sort with this memory card. I don't believe that those sorts of tests reflect real life use, since a sequential read/write is relatively uncommon, and you're never writing bunches of tiny files all the same size. I have found, however, that real life performance is beyond what I am able to put this card through.I am using this card with a Sony NEX-5N, which is a compact system camera (mirrorless camera) that writes 16.2 megapixel images in a few different levels of JPEG compression and a Sony RAW format. In addition to RAW images, it also records video in MP4 or AVCHD format at 1080p 60fps. I have used this card to the absolute top performance limits of this camera. It allows me to record 1080p60 AVCHD (28Mbps bitrate) with no hiccups or stutters. I can shoot in burst mode for short spurts, and while this card is not going to magically soak up 10 6MB JPEGs per second, I can get about 10 shots in one second and let the card catch up with the image processor's buffer in a couple of seconds. At this time, no card is capable of writing fast enough to keep up with 10 16.2MP images per second, though, so there is no reason to expect it in this card.I can pull the images off this card fast enough that I don't even notice that I'm actually dealing with a block of flash memory instead of a hard drive. I use Adobe Lightroom to import the images, so I'm not sitting there waiting on a Windows File Transfer dialog. I get to deal with a more pleasing interactive file transfer/import by using Lightroom, so I don't have to sit and twiddle my thumbs, but I'm impressed by the speed that files appear in my photo library on import. I believe that anyone who is going to "benchmark" this card with a full HD video camera or a DSLR will be very pleased with their purchase. I can't speak for people who will use the card for file storage/transfer, but my guess is that those users won't be disappointed either.I know this isn't a super exciting review, but this card just works and I think it was a good value.

Bought these as a replacement for the slightly different version of these that I bought that didn't function with my D750, and these cards work great! Rated as the fastest cards available for the Nikon D750, and they live up to it. Nice and sturdy, heavier than the usual SD Cards from other manufacturers, and backed up by a good warranty. They also come with a 2-year subscription to Sandisk's rescue software, which is nice.

Very hi quality, reasonable price.

This is a great card but its sometimes a gamble if your going to get a real one or a copy rebranded card. I happen to get a fake rebranded card and it was not easy to tell. I contacted sandisk and they verified by the serials and images that it was indeed a fake card. More so I did a test on the card to see if it was a small 4-8gb card or even a real 64. Its a real 64gb card but some cheap china one I assume. You cant always tell by the cards because sometimes they look pretty good. There were a few things that threw me off.1. the yellow lock switch2.the serials and images on the back of the card3. The super gold plates4. The plastic (real ones will look different)5. The sticker on the front (off center and not perfect)6. Speed testing.7. Gut instincts (varies based on size of gut and experience)I did a heavy load on the card with 50gb of wedding images and it handled it. Next I did a Black magic speed test and ill post the numbers below. I contacted amazon and they have allowed the refund to be made. I cant risk having a low performance card for weddings especially for the price. If you can please double check your cards by verifying it through Sandisk services. All you have to do is email them with the serials on the card. Super easy and they respond within a day. I gave it two stars because amazon service is amazing. I also have some images of a fake and a real card. Hope this helps