The 256GB Extreme PRO CFast 2.0 Memory Card from SanDisk combines the speed, capacity, and performance needed to record uninterrupted DCI 4K video, which has a resolution of 4096 x 2160 and a 17:9 aspect ratio. It features a SATA III 6 Gb/s bus, a maximum read speed of up to 525 MB/s (3500x), a maximum write speed of up to 450 MB/s (2933x), and a minimum write speed of 130 MB/s. Its minimum write speed is backed up by the Video Performance Guarantee 130 standard (VPG-130), meaning that its minimum write speed will never drop below 130 MB/s.

This card has been tested to work in temperatures of -4 to 158°F, and in the case of card errors or accidental deletions, this card comes with a RescuePRO Deluxe data recovery software download offer. Additionally, thanks to ARRI's Software Update Package (SUP) 5.2, this card is also compatible with select ARRI digital cinema cameras.