USB flash drive, USB stick, USB pen USB version 1.1/2.0 interface Capacity: 128MB to 8GB High performance Data transfer rate for read is from 12 to 25Mbps, for write is 4 to 14Mbps in dual channel mode Data transfer rate for read is from 8 to 15Mbps, for write is 2 to 8Mbps in single channel mode The rate of performance depends on the different operation system available and various flash adopted Multiple operation systems supported: no driver needed in Microsoft Windows ME, Windows 2000, Windows XP, Mac 9.x or later, and Linux Kernel 2.4 or later Only Microsoft Windows 98 and Windows 98 SE need the enclosed driver Auto-run function is optional Product dimensions: 6.0 x 2.0 x 0.7cm Net weight: 10g