The U225-004-R 4-port USB 2.0 Hub allows you to attach multiple USB devices to a single USB port on your computer. The hub supports all three data transfer speeds: low speed (1.5 Mbps), full speed (12 Mbps) and Hi-Speed (480 Mbps). Includes four-foot USB 2.0 Computer to Hub cable (A-B).

USB 2.0 and 1.1 compliant
Compact desktop design ( 4"W x 2.5"D x .625"H )
Does not require external power, software, or complicated set-up procedures
Supports USB 2.0 spec up to 500mA per port
On bus-power, 500mA from the USB 2.0 computer port is shared between the hub ports
Plug & Play and Hot Swap capability
Compatible with Windows, Mac and Linux