• 4 x 100M PoE ports and 1 x 100M Ethernet port. • Supports IEEE802.3at/af. • Supports IEEE 802.3, IEEE 802.3u and IEEE 802.3x. • Supports high priority ports. • Supports 8-core power supply. • Up to 250 m transmission distance. • PoE port with 6 KV surge protection. • Supports PoE output power management. • 100M network access. • Wire-speed forwarding and non-blocking design. • Store-and-forward switching. • Solid high-strength metal shell. • Fan-free design with high reliability.