Belkin F5U021v USB 4-Port Hub: * Easy installation with Plug-and-Play convenience * Expands a single USB port to four ports * Fits compactly on a desktop and saves desktop space * Features stackable, sleek design System Requirements* PC or Mac computer with USB port * For PC Users: Windows 98, 2000, ME, XP and Vista * For MAC users: Mac OS 9 to OS 10