Features: 1.MULTIPLE PORTS: Ethernet optical switch provides multiple Gigabit SFP optical ports and 10/100M adaptive RJ45 network ports, and different SFP optical modules can be selected according to field needs. 2.EFFICIENT TRANSMISSION: Ethernet transceiver supports multiple protocols for lossless and efficient data transmission, full half duplex adaptive, IEEE802.3x flows control, back pressure flows control, multicast, QoS, to ensure efficient network operation. 3.MONITOR NETWORK STATUS: Easy to view LEDs provide status to easily monitor network activity, compliant with IEEE 802.3 802.3u 802.3af. Status LEDs for TX, FX LINK ACT, POWER, FDX allow easy monitoring of network status. 4.LONG DISTANCE TRANSMISSION: When used with different types of SFP modules, the FX port can be hot swapped to extend the fiber distance to 0 to 120km, support jumbo frame size of 9K bytes, and support operating temperature range from 0C to 60C. 5.PLUG AND PLAY: SFP fiber media converter is plug and play, easy to use, supports MDI, MDIX port auto flip, plug in power, fiber, network can be used, simple and convenient to use. specification:Item Type: Ethernet Optical Switch Material: Metal Plug Voltage: 100?240V Supported Protocols: IEEE 802.3i, IEEE 802.3u, IEEE 802.3ab, IEEE 802.3z Optical Port: 1 Electrical Port: 8 Data Rate: Optical Port 100 Mbps, Electrical Port 10/100 Mbps PackageList:1 x EthernetFiberMediaConverter 1 xPowerAdapter 1 xUser Manual