The Delkin Devices 64GB BLACK CFexpress Type B Memory Card has a storage capacity of 64GB and is intended for professional photographers and videographers. It excels at raw and continuous-burst photography, as well as 8K, 6K, and 4K video at high bitrates and frame rates. You'll be able to achieve maximum read speeds of up to 1685 MB/s and minimum write speeds of at least 1680 MB/s thanks to a PCIe 3.0 interface.