8 RJ-45 Ports 10/100Base-TX (PoE). 2 RJ-45/SFP combo Ports 100/1000 (non-PoE). Auto MDI/MDI-X. High Performance Architecture. Unmanaged plug and play installation requiring no programming. Store-and-Forward switching architecture with wire-speed filtering and forwarding rates. Power over Ethernet (PoE). Up to 4 IEEE 802.3at devices powered. Supports up to 30 watts for each PoE port. Auto detect powered device (PD). Robust Hardened Design. Provides either DIN-rail or wall-mounting. 52 to 56VDC Operation. Redundant power with reverse-polarity protection. Removable terminal block for master and slave power. Alarm relay output for power-failure alert. Voltage/surge-suppression. Complies with IEC60068-2-xx standards for free-fall, shock and vibration. Wide operating temperature range of -40ºC to 75ºC.