·24* 10/100/1000M PoE Ports 2*Gigabit Uplink 2* Gigabit SFP Ports； ·Comply with IEEE802.3, IEEE802.3u, IEEE802.3ab Standard; ·Ethernet Ports support 10/100/1000M self- adaptive; ·The AI mode is automatically enabled 10M speed for Ports 17~24 in Extend mode; ·POE priority is supported, from port 1 to port 16, which is enabled by default； ·Flow control mode: IEEE 802.3X standard for full duplex, and Back Pressure standard for half duplex; ·Zero configuration feature, automatically supplied to adaptive equipment; ·Panel indicator monitoring status and help failure analysis; ·WithDIPswitch, support Extend modes; ·Support port lightning surge: common mode 4KV（level B）; Electrostatic ESD: air 8KV, contact 6KV(level C)
