Modular managed rackmount Ethernet PoE+ switch with 8 built-in 10/100BaseT(X) PoE+ ports, 4 Gigabit Copper/SFP combo ports, 2 slots for Fast Ethernet PoE+ modules. Support for up to 24+4G ports with 8 built-in PoE+ ports and up to 24 PoE+ ports, 2 isolated power supplies (85 to 264 VAC), -40 to 75°C operating temperature