Usbkingdom 16GB USB 2.0 Flash Drive Black Credit Card Bank Card Shape Pen Drive Thumb Drives Memory Stick Pendrive Jump Drive Flash Disk Plastic black credit card shape,fits perfectly in your purse,wallet or pocket,3.27*2.05*0.08 inch,0.35 oz,real capacity,good choice for using or as gifts Suitable for digital data storing, transferring and sharing, Store and transfer photos, videos, songs and other files between pc computers Plug and play;Durable data storage;Waterproof,Shock proof and electromagnetic proof;Fast speed in write/read transfer High speed USB 2.0 interface and compatible with USB 1.1;Use A-class chip, can be erased repeatedly for 100,0000 times Compatible with USB 2.0 and systems of Windows 7,Windows 8, Vista, XP, 2000, ME, NT Linux and Mac OS,etc.