The thinnest 1.9mm credit card USB in the world, tiny size makes it easy to carry anywhere

Features:1) Product name: Credit card USB2) Tiny size makes it easy to carry anywhere3) Support data encryption4) Hot plug and play5) Fast transfer rate6) Low power consumption7) Driverless for Windows ME/XP/2000 or Mac OS 9.0 or above.8) Storage capacity: 512MB ~ 4G flash memory.

the thinnest 4GB Credit card USB