Sony's 640GB CFexpress Type A TOUGH Memory Card offers both strength and speed, with reading speeds of up to 800 MB/s and write speeds of up to 700 MB/s. This fast performance is useful for recording a wide range of video resolutions, bit rates, and compressions, as well as high-resolution continuous raw photo shooting. Aside from speed, this TOUGH memory card has a reinforced physical design that can withstand falls of up to 15' and has been rigidity tested to 70 N of force. It is also resistant to high temperatures, X-rays, electrostatic discharge, and UV lighting. File Rescue recovery software, which can be downloaded, can be used to recover lost or accidentally deleted files, and Media Scan Utility can be used to automatically scan CFexpress cards and inform you of the flash memory condition.