Warranty: 1 Year Features: IEEE 802.3 Ethernet and IEEE 802.3u compliant Supports IEEE802.3af/at standard AI detection + intelligent modes 4/8/16 POE ports with 2 uplink ports Auto MDI/MDI-X support Full-duplex flow control support Wire-speed forwarding MAC learning & aging Metal casing, 65W–250W output Plug and play Technical Specifications: Multiple protection Bare Metal: 270mm × 180mm × 45mm Complete Machine: 310mm × 244mm × 77mm