Features:
Net weight: 2.2 OZ 
Dimension: 6.0" x 3.0" x 1.5"Capacity: 4GB
No physical drive required
No driver installation required
High reliability and access rate
Supports user password
Supports data compression/decompression function
Antimagnetic
Can wipe and write data for 1 million times
Keeps data for more than 10 years
System requirements:  Hardware: IBM PC, compatible PC, notebook or Apple with USB interface & Operating system: Windows 98/SE, Windows ME/2000/XP, Windows 7, Mac Os, Linux Kernel 2.4X and others supported by USB Mass Storage

Specification:
Interface: universal serial bus unit 1.1/2.0
Power supply: directly from USB interface (4.5V, 5.5V)
Working current: <40mA
Suspend current: <300A
Transfer frequency: Writing: 2,000KB/s & Reading: 10,000KB/s (related to mainframe)LED indicator: light means it is working