BB4 PACK OF 2 USB 2.0 + Micro USB OTG SD T-Flash Adapter for Cell Phone PC Card Reader(White)

USB interface: Micro usb/usb -Card Reader: SD/micro SD card -With SD/ T-Flash card slot -Support for SD/ T-Flash card -Easy plug and play installation device, no external power needed -Read and write LED flash light -Transfer Rate: USB2.0, 480Mb/s -Operation Voltage: 2.7v - 3.6v DC from USB port -Dimention: Approx. 55 x 16x 10 mm / 2.2 x 0.6 x 0.4 inch -Support for charging while connected to charger -Operating System: Android 2.3 or above, as the HOST interfaces, support smart phones and tablet with OTG function. -PC Operating Systems: Windows 2000,2003, XP, Vista, 7, Mac 10.45 above and Linux 2.4 or above. -Support Memory Card: A) SD / SDHC / SDXC / EXTREME SD / EXTREME II SD / EXTREME III SD/ ULTRA SD / ULTRA II SD / ULTRA II SD P PLUS /SD-ULTRAX /ULTRA SPEED SD / SD PRO / SD ELITE PRO / HS SD / MMC / MMC 4.0 B). microSD / microSDHC / microSDXC Support Samsung Galaxy SII I9100，I9103，I9220，SIII 9300, note II 7100, HTC NEW ONE,HTC Butterfly, -Support smartphone and tablet PC with OTG function and micro USB port .Easy plug and play installation device.- No external power needed.- Supports Micro SD, SD T-Flash Card in Mobile and Computer.- Transmission speed upto 480 Mbps.It works perfectly with mobiles / tablets that support USB Host mode. (please be sure your device supports USB Host Mode)