1. L2, Unmanaged, 24 100M PoE port, 1 1000M RJ45 uplink port, 1 1000M independent SFP uplink port;
2. 802.3af/at self- adaptive, PoE power budget 225W;
3. Four Working Mode:
     a. "Extend" Mode: Port 17-24, max. 250m long distance transmission;  
     b. "Isolate" Mode: each 100M port as a single
            Vlan to isolate the portcommunicaiton and prevent network storm;
     c. "Standa.rd" Mode: default, normal working mode;
     d. "Priority" Mode: VIP port, port1-8, QoS priority;
5. Lightning Protection: 6KV per port;
6. Metal casing;