Compliance: USB version 2.0; Plug type: USB A type (female) x 4, Mini5 (female) type, DC2.5 type; Four USB devices to PC, available to 127 USB devices System: IBM PC, Apple, iMAC, iBook, PowerMAC G4/G3, PowerBook G4/G3 series Transfer rate: 2.0 (480mbps) Compatible with Windows XP, 2000, ME, 98SE, 98, Macintosh OS 9.2/9.1/9.0/8.6/OS X/10.1 Power: bus power (5V DC, 500MA), overcurrent protection function 1. With 4 ports USB HUB; 2. it's slim aluminum HUB, the size is:81*37*10mm; 3.with 1pc 80cm black USB AM/Mini 5pin Cable 4.USB2.0 HUB with GL850A; all chips imported from original Taiwan company; 5.Plug-and-play 6.Suitable for gifts and super market items 7.Color: Blue, Silver and Red