4 Port USB 2.0 Wireless Hub - Compatible with Windows XP and Vista not Windows 7 Certified Wireless USB 2.0, guarantees connectivity with all future Certified Wireless Products Multiple User Switching Process - Associated users can easily share peripherals like Digital cameras, Camcorders, Printers and more by selecting their assigned button 1, 2 or 3 Improves speeds up to 10 times faster than a regular Wireless 802.11b Network Wireless USB was created for Laptop users allowing the device to go into sleep mode when the connection is not being used. This allows for little to no power being drained from the laptop batteries Operating System support: Windows XP SP2 Certified Drivers ; Windows Vista.