CompactPCI-Serial Four Channel 10/100/1000 Mbit/s Ethernet; x4 PCI Express (Base Specification 2.1) compliant interface; Quad Port Intel" I350-AM4 Gigabit Ethernet Controller; P3 Rear Connector, 3U Rear Board with 4x RJ45 available; 10Base-T / 100Base-TX / 1000Base-T; 1 Mbit serial flash memory for Boot ROM; 128 Kbit EEPROM storing configuration data; Operating temperature -40°C to +85°C