Expresscard, Adapter, Cf Extreme Pro Suitable for computers/laptops equipped with ExpressCard 34 or ExpressCard 54 slot. Supports CompactFlash Type I, CompactFlash Type II, PIO mode and UDMA mode (according to Compact Flash Spec. Rev. 4.1). Provides high speed for SanDisk Extreme Pro CompactFlash cards with UDMA mode, data transfer speed (read / write) up to 90 MB/sec*. Reliable and rugged stainless steel cover. Power supply from ExpressCard socket with no external power required.