24Port Gigabit+2SFP Rackmount Switch with 24-Port PoE, Built-in Marvell chip, 1-24ports support IEEE802.3af /IEEE802.3at, Maximum PoE Output Power: 370W, 1U 19-inch rack-mountable steel case, 6KV lightning protection for all ports, 6KV lightning protection for Power supply, 4 Modes, Standard, Priority,Extend,VLAN.