Angelbird's AV PRO CFexpress XT MK2 660GB Type B Memory Card is designed for projects that demand extended endurance and greater sustained write speeds. Ideal for live broadcasts, single-take film productions, complex shoots, nature films, and documentary interviews, this card delivers precision recording for high bitrate files and uncompressed raw resolutions up to 12K. With a capacity of 660GB, it uses the PCIe 3.0 x2 bus to achieve maximum read speeds of 1700 MB/s and maximum write speeds of 1500 MB/s. Sustained read speeds are 1500 MB/s, and sustained write speeds are 1480 MB/s. Compatible with devices that support CFexpress 2.0 Type B, such as the Canon EOS-1D X Mark III, EOS C500 Mark II, EOS C300 Mark III, and EOS R5, Nikon Z 7, Z 6, and D6, and Panasonic LUMIX DC-S1 and DC-S1R, this memory card is engineered with protection against shock, dust, water, overheating, temperature extremes, and x-rays.