... phone best partner 5.OEM service Feature:1.TFcard reader 2.USB2.0 Plug & play 3.competitive price ... USB2.0, Compliance with USB 1.1Support Memory card: Micro SD&T-Flash Plug and play ,high speed data ... power Supply ,No external power supply requiredSupport high speed card, Slim size ,easy for carry Transfer files between ... Shenzhen, FOB Shenzhen or FOB Hong Kong USB Micro SD card reader/ TF card reader