Backwards Compatible: Yes. Brand: Belkin. Built-in Printserver: No. Contains USB Adapter: No. Ethernet Ports: 4. Firewall: Yes. Frequency Band in GHz: 2.4. Integral Homeplug Adaptor: No. Maximum Wireless Speed Mbps: 54. Product Depth: 8.89. Product Height: 22.36cm. Product Weight: 0.7kg. Product Width: 20.06cm. Qos Priority: No. Router Type: DSL/Cable. Security - Mac Address Filtering: No. Security - Wep Encryption: No. Security - Wpa2-psk Encryption: Yes. Security - Wpa-psk Encryption: Yes. Socket For 3g USB Dongle: No. Technical Help: Standard rate Call. Wi-Fi Standard: IEEE 802.11b. Windows Compatibility: Mac OS 8.x, 9.x, X v10.x, AppleTalk ,Linux ,Windows 95,98SE, Me,NT ,2000,&XP,& others..