Linksys Wireless-G Broadband Router with SRX400. Data link protocols: IEEE 802.3, IEEE 802.3u, IEEE 802.11g, IEEE 802.11b. Firewall security: Stateful Packet Inspection (SPI). Certification: FCC, IC-03, CE, Wi-Fi (802.11b, 802.11g, WPA). Operating temperature range (T-T): 0 - 40 °C, Storage temperature range (T-T): -10 - 65 °C, Operating relative humidity range: 15 - 95 %. Weight: 0.42 kg