MAIN OVERVIEW FEATURES: Host Interface: USBTotal Number of USB Ports: 4Number of USB 2.0 Ports: 4Number of Network (RJ-45) Ports: 1Color: BlackForm Factor: ExternalPackage Contents: U224-1R4-R 3-port USB HubTransmitter unit with 1ft cableRemote Unit with 1 USB "A" port5V, 2Amp, DC Power SupplyOwners ManualLimited Warranty: 3 Year