Sandisk Extreme Pro 64 GB Class 10 UHS-I 95 Mbps Read U3 V30 Micro SD Memory Card - SDSQXXG-064G

I used this card on my Phantom Pro 3 recording at 4k and had no problem with the card with it being used and the adapter has helped me transfer my files to my MacBook pro for easy transfers. If not to my MacBook, I would transfer it to my PC that had a SD card dongle. I would be transferring files at speeds from over 75 mbps but, not really any higher than 92 mbps. The transfer speeds fluctuate if you have multiple files moving from the card to your workstation, but if you have a 6gb video file, it would rise up to 80 mbps and capping to 90's mbps but wouldn't drop if it's at the same file. I really love the new UHS-1 (or more) technology so, we gotta appreciate SD cards tech now for our photography or as content recording.Pros:- Recorded fine on my 4k Phantom Pro 3 at 30fps- Transfers fast from above 80 mbps, capping around under 95 mbps- Comes with the Micro SD to SD card adapter for conveniencyCons:- It's a micro SD card, be careful not to lose it.

Because so many SD cards are fake, I run extensive tests under linux before using an SD card. This card stores 63864569856 bytes (59.5 GiB). Before running any tests, I executed blkdiscard /dev/mmcblk0 to clear the card completely. I then wrote 63864569856 bytes of pseudo-random data (generated by the RC4 stream cipher) to the card and flushed the buffer cache. Finally, I read the data back twice with no errors. That indicates this is a real 64GB card, and not some fake 1G card lying about its size. The write speed I observed was 63.3 MiB/sec, and the read speed 74.9 MiB/sec. So not quite what is advertised, but still better than most SD cards I have.

I have had two of these cards go bad when in use with my DJI Phantom 4 Pro. Sandisk did replace them, but with a very slow and annoyingly long process in which they gathered enough personal info about me to steal my identity (both times). Samsung makes better Class 10 U3 cards for half the cost.

For the price, this is the best storage available for 4k video. I needed a larger and faster card for shooting 4k video from my drone and this is what I got. It worked flawlessly.

This has been a perfect buy and hasn't let me down one bit. I have reformatted the microSD more than 20 times as I travel a lot and make many videos using GoPro 6 and the SDcard is still working like new. I love it!

Product as described and works great in my tablet device. Speedy read/writes.

Arrived on time. Same as advertised. No complains until now. I am happy with this product. Normal looking product.

Great card for my new  AKASO V50 Native 4K/30fps 20MP WiFi Action Camera with EIS, Ultra HD 30m Waterproof Camera with Remote Control, 170 Degree Wide Angle, 2 Rechargeable Batteries and Mounting Accessories Kit  works very well no issues recording at 4k 30 FPS

Just does exactly was it says on the tin. No issues after many month storing 4K video from my drone at 60Mbs. And I have learned to trust Sandisk...this hasn't disappointed.

Recorded 4k 100 Mbits/s without issue.

Great card for my go pro hero 5. The videos are fantastic and clear. It is a must for go pro hero users!!!

I purchased this for my Phantom 4 Drone, and in the short time that I have used it it has recorded the video perfectly

good