High-Speed Silicon Power 128GB CFast2.0 CinemaPro CFX310 Memory Card, 3500X, with Read Speeds of up to 530MB/s. Ideal for Blackmagic URSA Mini, Canon XC10/1D X Mark II, and other devices Review

It has worked well with my Blackmagic Pocket Cinema 4K camera so far and has worked with all codecs so far with no issues. It can record 4K 60 fps, but only with low-end codecs. Braw Q0 took less than 11 seconds and ProRes HQ around 17 seconds. Braw's constant 5:1 bitrate was fine, and ProRes 422 was fine too. Ultimately, I hope this map will not let you down on the journey. I mainly use this as a backup to an SD card.

I know it's not the fastest read/write card but I've used it with BRAW 5:1, 8:1 and 12:1 for a few weeks and it has works wonderfully. A must-buy if you normally use an external hard drive and want to do without a gimbal and take care of extra balancing/cables. It costs 75-100 dollars.

It's not the fastest CFAST card out there, but it's fast enough for the Canon 1DX Mark 2 for video (4k 60 fps) and photos (not buffered yet). It's reliable, priced right, and just works. Just bought another one! Highly recommended!

I shoot weddings with the 1dx Mark II and prefer to shoot in 4k 60p which eats up data like no other. Multiple cards are required. This card allowed me to have 4 cards in reserve for the price, which is a game changer. So far they have been very reliable. No questions. Goodbye, ridiculous $400 Sandisk price.

The idea is to use it as a backup memory card. I use Bmpcc4k to record memories. It's very convenient and easy. I skipped using an SSD card because of all the connections etc so I went with the faster style plus memory card protection. I will say that (For Bmpcc4k) At a resolution of 3840 x 2160 12:1 and 24 frames per second, it can record up to 67-72 minutes. So pay attention to the memory used. I recommend 256 for main use and 128GB for backup.

I bought two of these cards and was only able to get them to work at 190MB/s write and 390MB/s read. Nowhere are 330 MB/s writing and 530 MB/s reading. I'm really not too surprised considering they only cost $90 each. They still work well and are faster than any $90 SD card. You work for what I need. I just wish they advertised a little more honestly.

I use SP Cinema Pro and PixelFash HyperCore for my Canon. Both work fine, although Cinema Pro is slightly faster when I transfer files from the card to my editor via the reader. The Cinema Pro is a little cheaper if you're trying to save a few bucks, but not by much. Any of the above Cfast cards will get the job done and give you the results you want.

So far it has worked well with my Blackmagic Pocket Cinema 4K camera and works with all codecs with no issues. It can do 4K 60 fps but only with lower codecs. Braw Q0 took less than 11 seconds and ProRes HQ around 17 seconds. Braw's constant 5:1 bitrate was fine, and ProRes 422 was fine too. Ultimately, I hope this map will not let you down on the journey. I mainly use this as a backup to an SD card.