3com 3CR858-91-ME. Switching protocols: Ethernet, Routing protocols: RIP-1, RIP-2, Data link protocols: Ethernet, Fast Ethernet. Firewall security: Hacker pattern detection firewall, VPN support: VPN pass-through. Safety: UL 1950: EN 60950 CSA 22.7 #950: IEC 60950. Power consumption (typical): 6.5 W. Weight: 0.535 kg