Capacity: from 1GB up to 16 GB available USB 2.0 configuration, compatible with USB 1.1/1.0 High reading and writing speed Super-shockproof and moisture proof Operation systems supported: Windows 98/ME,2000/XP/Vista or above versions Power supply: does not require an external power supply Super quality and competitive prices provided. Any kinds of company logos are acceptable. Quick deliver and complete after-sales service.