Very compact 4 port USB (Universal Serial Bus) 2.0 hub; ideal for notebook users. Short USB (Universal Serial Bus) cable attached to prevent connection conflicts with other USB (Universal Serial Bus) ports on your notebook or desktop PC. USB (Universal Serial Bus) cable can be folded & attached to the body of the hub to keep it in place. Quickly connect up to 4 USB (Universal Serial Bus) 2.0 peripherals to 1 USB (Universal Serial Bus) port. Supports USB (Universal Serial Bus) 2.0 (up to 480 Mbps.) & USB (Universal Serial Bus) 1.1 (up to 12 Mbps.) peripherals. No power adaptor needed. Operating system supported: Windows 98 SE/ME/2000/ XP/ Xp x 6 4. Two year manufacturers warranty.