2GB/4GB/8GB USB 2.0 Flash Drive Memory Stick Fold Storage Thumb Stick Pen Swivel Design for OTG Phone Tablet PC Key chain design and fashionable style;No need drive, only plug in Support PC Mode: all brands of PC, Laptop, HP, Dell, Toshiba, etc. SupportWin98/ME/2000/XP/Vista/7, Mac OS 9.X Support USB version 2.0 and 1.0 Function2:Micro SD card reader without taking the TF card out of mobile phone;Function3:Smart phone external without taking the TF card out of mobile phone