Linksys EtherFast Cable/DSL 8-Port Router. Networking standards: IEEE 802.3 (10BaseT), MAC address table: 253 entries, Modem speed: 2000 Kbit/s. Switching protocols: CSMA/ CD, Data link protocols: TCP/IP,UDP,ICMP,ARP,NetBios. Certification: FCC, CE. Operating temperature range (T-T): 0 - 40 °C, Storage temperature range (T-T): -20 - 70 °C, Operating relative humidity range: 5 - 90 %. Weight: 0.35 kg