CY CFexpress Type-B 128GB Memory Card CFE CFB Adapter Compatible with Camera 8K RAW PCIe Expansion

DOES NOT WORK. STILL WAITING ON A REFUND.Bought this for a nikon d4s. Fits well but the card didn't work. I kept getting error messages and the card would not format. Tried in 2 of my other cameras in case it was a fault on the camera but it didn't work on any of them. Disappointing if you required this urgently for it to not work. Could just be a fault with this item, however I would be cautious and test the card as soon as you get it to ensure it works before going out to shoot.

Could not keep up with 4k 120fps at high bit rate. Effectively no good for my purpose.