3com OfficeConnect® Secure Router. MAC address table: 253 entries. Routing protocols: RIP-1, RIP-2, Data link protocols: Ethernet, Fast Ethernet, Management protocols: HTTP. Power consumption (typical): 7 W. Operating temperature range (T-T): 0 - 40 °C, Operating relative humidity range: 5 - 95 %. Weight: 0.535 kg