Linksys EtherFast Cable/DSL 4-Port Router. Networking standards: IEEE 802.3 (10BaseT). Switching protocols: Ethernet, Data link protocols: Ethernet, Management protocols: RMON. Certification: FCC, CE. Operating temperature range (T-T): 0 - 40 °C, Storage temperature range (T-T): -20 - 70 °C, Operating relative humidity range: 10 - 85 %. Weight: 0.35 kg