Features:Ordinary U diskMicro SD card reader without taking the TF card out of mobile phoneSmartphone external storage deviceFit for Sumsung phones and all smart phone.

Details:Real capacity:4GBSpeed: High-speed read and writeInterface: USB interface, no drive, plug and play, hot-swappableEndurance: 1,000,000 times rewritable;Applicable models: the various brand PC and compatible computers, Macintosh, PowerBook, iMAC or iBook.Special design: earthquake proof, anti-electromagnetic waveOperating System: Windows 2000 / XP and abovePower Source: USB bus-powered (4.5V ~ 5.5V)Operating Current: <50mAHigh speed Read & Write, maximum to 8mb/sData Retention: 10years upUSB 2.0 Hot Plug & Play CompatibleCompatible with USB 1.1/2.0Operating Temp: -10 to +55Deg.CStorage Temp: -20 to +55Deg.C

Package List:1 x 4GB USB Flash Storage Pen Drive For Smart Phone/Tablet/Computer