1) Low power consumption-powered from 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:SD,mini SD,MMC,RS MMC,Sd-Ultra II,T-flash,MMC 4.0,SD Extreme,MMC II,ULTRA MMC,SD Extreme III,HS RS MMC(total 12 cards) 6) Note: Mini-SD Card and T-Flash need adapter