EgoDisk Pro 256GB Cfast 2.0 Memory Card for BlackMagic Ursa & Ursa Mini Pro 4k / 4.6k , Canon , Hasselblad , Arri and Atoms CFast 2 Supported Devices - 3 Years Warranty

Perhaps it was me. It didn't work in my Canon C300 Mark ll. It's likely not fast enough.

Excellent performance and even better price. Works exceptionally well in my 1DX Mark II for filming 4K video, as well as stills. Works better in my Hasselblad H6D than my SanDisk Extreme Pro cards, which are on Hasselblad's list of compatible cards (yet, they don't seem to work very well) CrystalDiskMark results attached.

Card has re-formatted itself twice in the 4 times I used it. Lost 70 video files from my URSA Mini. It CANT even handle ProRes at 1080p 29.97 fps......insanely ridiculous.

Very pleased with this CFast 2.0 card. Using a Canon XC-10 4k video camera and this holds about 2 hours of video!

So far so good with Ursa Mini 4.6k. No dropped frames in any shooting codec/RAW.

Works great with the URSA mini 4.6K. Read/Write speeds are very fast and the price is absolutely incredible.

works like a charm with Ursa mini 4.6k

Not expensive and very fast