1. 4 port USB HUB with ON/OFF Switch 2. USB 2.0 version 3. Customized color, ... :5VPower Supply:No external power supply neededMaterial:ABSApplication:Desktop and laptopCapability:Plug&play and hot swappingColor:White, blackLogo printing:AvailableMini order qty ... or over, 98SE, Me, 2000, XP, Vista), Linux 2.4 and Mac 10.4 or over