USB Memory Card Reader 1.Plug and play ... packing 4.Support:SD,M2,TF,MMC usb 2.0 memory card readerSpecification: Support: M2,TF,MINI ... SD(use adapter),SD,SD-ULTRA II,MMC1,RE-MMC,HS-MMC,T -FLASH ... accessibility speedUSB 2.0 Version specification,and compatible USB 1.1 plug and play, no external power ... CTNCTN size: 73*45*23cm 2.0 USB Memory Card Reader