Warranty: 2 Year Features: Comply with IEEE 802.3 Ethernet and IEEE 802.3u Fast Ethernet protocol standards Supports IEEE802.3af/at standard, compatible with PDs supporting IEEE802.3af/at Support ordinary switch / AI detection + intelligent super remote modes 10/100/1000M POE ports, 2 uplink RJ45 ports, 1 1.25G SFP port All ports support Auto MDI/MDI-X function Supports IEEE802.3X full-duplex flow control and backpressure half-duplex flow control Wire-speed forwarding on all ports MAC address auto learning and aging Full metal casing, power output 65W–250W Plug and play Technical Specifications: Multiple protection Bare Metal: 190mm × 140mm × 43mm Complete Machine: 220mm × 195mm × 52mm