SMC SMCBR21VPN. Networking standards: IEEE 802.3 10/IEEE 802.3u/IEEE 802.3x. Firewall security: SPI/NAT/. Certification: FCC/CE/UL. Operating temperature range (T-T): 0 - 40 °C, Storage temperature range (T-T): -20 - 70 °C. Weight: 0.9 kg