1) Low power consumption-powered the system 2) Support data transfer rate at 1.5/12/480Mbps 3) Compliant with both USB2.0 and USB1.1 specification 4) Hot swap allows you to detach USB device without rebooting your system 5) Cards supported: CF1, CF2, Extreme CF, Extreme III CF, UItra II CF, HS CF,XS CF, CF Pro, CF Elilte Pro, CF ProII, MD, MS MG Duo, , MS Pro Duo, Hitachi,MD, MagicStor, MS, MS Pro, MS MG, MS Magic Pro, Extreme MS Pro, ExtremeIII MS Pro, UItra II MS Pro, HS MS MG Pro, HS MS Pro, RS-MMC, HS MS Pro Duo, MS , SD, Extreme SD, Extreme III SD, UItra II SD, SD Pro,SD Elilte Pro, HS SD, UItra Speed SD, SD-Ultra-X, HS Mini SD, MS ROM, MS DUO,MMC1, MMC2, MMC 4.0, XD, HS RS MMC, DV-RS MMC, RS MMC 4.0,TFlash, Mini SD, HS MS MG PRO DUO, MS MG PRO DUO (total 50cards)