1,sd memory card adapter 2.Support :TF / Micro SD,WINDOWS 98 /ME/2000/XP/ ... QS 3,USB2.0version 4.OEM welcome sd memory card adapterUSB 2.0 Card readerHigh Speed USB2.0, Compliance with USB 1 ... bus power Supply ,No external power supply requiredSupport high speed card, Slim size ,easy for carryTransfer files between your computer and ...