SanDisk Extreme CompactFlash 120MB/s 128GB is a compact and durable flash memory card designed for use with digital cameras especially DSLRs. It can read and write with blazing fast speeds and offers first class transfer rates. You can transfer files up to 120MB per second. It supports Video Performance Guarantee (VPG-20) which is ideal for storing pro HD captures. It can operate in temperature range of -13 up to 185F. It provides 120MB/s read speed and 85MB/s write speed.