USB 2.0 memory Card readerFeature:Memory card readerHigh Speed USB2.0, Compliance with USB 1.1LED for bus activity from USB port, View and edit the data directly one the readerDrag and drop files between cardsUSB specification Ver2.0USB bus power Supply ,No external power supply requiredPlug and play ,high speed data tranfer4Card Slots:1 slot :SD/MMC/RS-MMC/SDHC 2.slot :Micro SD/TF 3 slot :MS/MS PRO/MS DUO PRO/MS DUO/ MS MG 4 slot:M2Support high speed card,high speed data tranferAdopts good electronic componentr for high accuracy and reliabilityTransfer files between your computer and digital devicesLOGO printing service are availableLED light IndicationCE and Rohs compliance,Ideal for gifts or as promotional itemsSupport windows 98/me/2000/xp/vista,Mac OS9.1 or higher.