EarlyBirdSavings Tiny Qquare Shape USB 2.0 iHUB 4 port USB HUB Hi-Speed 480Mbps for XP Win7 Mac Supports Windows 98,Me,XP, 2000, Vista, Windows 7,Linux 2.4 and Mac OS 8.5 or higher 4 USB Ports available. USB 2.0 and USB1.1 Compliant. Supported data speed: 1.5/12/480 Mbps No Power adapter required, usb bus powered. Hot-swappable Plug & Play connection Generous Slim Design, convenient Dimension: ~1.25"(L)x~1.25"(W)x0.5"(H). USB Cable Length:~26.5". Color: White. Weight: 62g