Feature: 1, Function as a portable MicroSD/TF Card to USB adaptor. 2, Read and write Micro SD Flash Memory card. 3, Fully Compliant with USB v2.0 spefication. 4, Easy plug & play installation device. 5, USB bus powered, no external power is needed. 6, Convenient and flash data exchange for MP3, PDA, Digital Camera, Mobile phones, data.etc. 7, No driver is needed for win2000/ME/XP/VISTA.