Main features: 1. In conformity to IEEE 802.3 10 Base-T standard. In conformity to IEEE 802.3u 100 Base-TX/ FX standard. 2. Supports 1K capacity MAC address table. 3. IEEE802.3 X for full duplex and back pressure flow control for half duplex. 4. Automatically identifying the through line and cross wire 5. Forward 1552/ 1536 bytes packets for management. 6. In conformity to safety code of FCC and 15 CLASS A and CE MARK. Technical parameters: 1. Standard Protocol: IEEE802.3 10 Base-T standard IEEE 802.3u 100Base-TX/ FX standard 2.Connectors: six UTP RJ-45 connectors, two SC/ ST connector. 3. Operation mode: full duplex mode or half duplex mode 4. Power supply parameter: Input: 100-240V AC, output: 5V DC 1A 5. Environmental temperature: 0 -60 6. Relative humidity: 5% -90% 7. TP cable: Cat5 UTP cable 8. Transfer fiber: multi-mode: 50/ 125, 62.5/ 125 or 100/ 140?m single mode: 8.3/ 125, 8.7/ 125, 9/ 125 or 10/ 125?m 9. Dimensions: 135mm x 92mm x 37mm( external power) 222mm x 116mm x 37mm( internal power) .