Support memory card:MS / MS Pro/ MS Duo/ MS Pro Duo / MS Pro Duo/MS Pro HG
SD / SDHC /Mini SD /MMC /Micro-SD/M2
4Slots,Supports singleflash memory card each time.
Supports USB 2.0 Plug &Play
High speed interface,Transfer rate up to 480 Mbps
LED indicator for power and access
Power supply:5v,Supplied by USB port
Dimension of product (H×L×W):17×76.3×24.5MM
OS Support:Windows XP/VISTA/7