3com 5500G-EI PWR. Maximum data transfer rate: 0.1 Gbit/s, Bandwidth: 12.8 Gbit/s. Management protocols: 3Com Network Supervisor, 3Com Network Director, 3Com Enterprise Management Suite. Weight: 6.3 kg. Compatible operating systems: 3Com Operating System; shared with 3Com Switch 8800, 7700 and Router 6000. Dimensions (WxDxH): 440 x 427 x 43 mm, Installed ports: 4 Gigabit SFP ports; RPS power port (-48 VDC); RJ-45 console port, Networking features: DHCP tracker, UDP helper, traceroute, 1-1 traffic mirroring (standalone unit only)