Plug-n-play and hot plug Card Reader Read Micro SD card directly without any adapter LED indication for power and access 3 in 1 USB Flash Drive Card Reader Upgradable USB Flash Driver Compact Design for Mobile User Supports T-Flash card High Speed USB 2.0 Transfer files between your computer and digital devices USB 2.0 High transfer rate upto 480 Mbps USB Power, No external Power required, Windows ME/2000/XP/Vista/WIN7/WIN8 and MAC OS X Windows 98/2000 (SP1/SP2) and Mac OS 9 are supported by driver