Linksys Wireless-G Broadband Router with 2 Phone Ports. Networking standards: 802.11b, 802.11g, IEEE 802.3, IEEE 802.3u. Supported network protocols: TCP/IP. Security algorithms supported: RADIUS, TKIP, WEP, WPA. Certification: FCC, CE, cUL. Operating temperature range (T-T): 0 - 40 °C, Storage temperature range (T-T): -20 - 70 °C, Operating relative humidity range: 10 - 85 %