Nortel Baystack 5520-48T-PWR 10 100 1000 ENET. Maximum data transfer rate: 1 Gbit/s. MAC address table: 16000 entries. Management protocols: RMON 2, SNMP, RMON, Telnet, SNMP 3, HTTP, Switching protocols: Ethernet, Data link protocols: Ethernet, Fast Ethernet, Gigabit Ethernet. Weight: 8800 g. Power consumption (typical): 600 W