Review on High-Performance 256GB CFast2.0 CinemaPro CFX310 Memory Card - 530MB/s Read Speed - for Blackmagic URSA Mini, Canon XC10/1D X Mark II and More by Ryan Ramirez

Really great for higher compression options on BMPCC 6k. Personally, I have a large, fast USB-C drive for BMPCC, but I love the ease with which the Cfast card can be inserted into the camera. Less rigging, fewer cables from the camera. This card fits almost perfectly, I've had great results with Blackmagic Raw 8:1 and 12:1 with no issues, even at 60fps (using 5.7k). However, at 3:1 compression ratio, the camera stopped recording for 20 seconds and I did not check the 5:1 compression ratio. I've concluded that this card is a great, relatively fast daily driver of higher compression rates, but if you want maximum quality you'll have to pay for a more expensive card or upgrade to USB-C.