Sony M Series SDXC UHS-II Card 64GB, V60, CL10, U3, Max R277MB/S, W150MB/S (SF-M64/T2), Black

Great memory card for video and for a reasonable price

Excellent read speed in UHS-II mode. I benchmarked the card in several UHS-II readers and the highest benchmark was 269.0 MB/s in the Lexar Professional Workflow SR2 UHS-II. Write speed reached 99 MB/s in several card readers as well. This is a good card for those looking to improve their workflow with fast downloads. Its write speed is not much above what you can find in other UHS-I cards (Such as the SanDisk Extreme Pro 95MB/s UHS-I card), but the real improvement is the download speed. Sequential Read : 268.969 MB/s Sequential Write : 99.091 MB/s Random Read 512KB : 200.910 MB/s Random Write 512KB : 0.871 MB/s Random Read 4KB (QD=1) : 12.092 MB/s [ 2952.1 IOPS] Random Write 4KB (QD=1) : 2.624 MB/s [ 640.7 IOPS] Random Read 4KB (QD=32) : 14.369 MB/s [ 3508.1 IOPS] Random Write 4KB (QD=32) : 2.904 MB/s [ 709.0 IOPS]

Superb

I bought 2 of these cards and theyve performed flawlessly in my Sony a7RIII for both photos and 4K video. Expensive, but worth it.

Everything I expected.

To be honest, I purchased this SD card after more research than probably necessary. It works great with my Sony A7iii and is priced right.

I just ran into a problem that just popped up out of nowhere. All of a sudden Im unable to record simultaneously on my A7iii though I was able to just last week. I have 2 A7iii cameras, one with this memory card and the other has the 64gb version. Both worked in the past but today I received an error message. It wont even let me record in the non 4k mode. Very strange. The memory cards in the 2nd slots are the same for both cameras so that should not be a factor. When I switched the 64gb and 32gb memory cards, the one with the 64gb worked but not the 32gb. Can someone please explain or is this just a bad card? Like I said, it worked just last week and for previous events.

Great card, wish the price wasn’t so high...but hey it’s Sony!!!

So I recently purchased two 64GB cards. According to Sonys recall notice, if your card does not have an * in the back, then it is affected. Of the two cards I purchased, one has the * and the other does not. Like the comments of another user on this page, Sony may be overwhelmed by calls and due to the COVID-19 situation, replacement will be staggered. In my case, it will cost me to ship the card out of my country and I will have to pay customs duty when the replacement gets here which ultimately is costing me more for shipment than the actual cost of the card. TBH, I have done some 4k tests shots on the affected card and it works fine so I am not sure if this is a potential risk or an inevitable risk. Only time will tell.

I like the speed on this. I can shoot pictures in burst mode and it handles them very smoothly. Price wise is also very good and not that expensive. This is great for shooting 4k Videos also. I use them with Sony a7III.