Material: ABS plasticSpecification & Features: 4 Port Hub, USB 2.0/1.1 compatible. Transfer speed 1.5/12/ 480 Mbps Self-powered USB Hub, no adapter required. Plug & Play, no software required. Support Windows 95/98/Me/NT/2000/ Vista/ XP, 2000/ Mac OS 8.5

kinlan USB 4 Port HUB/ USB HUB/ USB 2.0 USB HUB