Specifications: USB2.0 Micro SD Card Reader 1: T-flash card reader 2: Hot plug and play 3: Mini card reader 1,Can read and insert Micro SD+T-FLASH etc Quick memory card, and without adapter; 2,USB socket, USB 2.0 USB1.1 compatibal,Digital transmit speed attached to 480Mb/seconds,no need extro power 3,attach a convenience item to hang a ring 4,System requirements: Windows98, ME, 2000, XP, Vista Or higher edition;