1、Supports half duplex flow control and full duplex back pressure mode, and each switching port supports adaptive function 2、Realize the seamless connection between optical and electrical signals of Ethernet. Support flow control to prevent broadcast storm 3、Provides a data transmission network with stable performance, high throughput and full line speed for each end user connected to the LAN 4、The optical interface supports multimode dual fiber, single mode dual fiber and single mode single fiber. Supports long packets up to 1632 bytes 5、The LED panel can diagnose the operation status of each port and the whole system. Low power consumption, less heating and good stability 1 x Switch1 x Plug 1 x User Manual  Item Type: Ethernet Fiber SwitchModel: TBC-MC3728GED20Standard Protocols: IEEE 802.3u, IEEE 802.3Z, IEEE 802.3ab, 10Base-T, 100Base-TX, 1000Base-XBandwidth: Electric Port: 8 x 10 / 100 / 1000M Optical Port: 2 x 1.25GWorking Mode: Full Duplex , Half Duplex, with Full Duplex, Half Duplex Automatic Negotiation FunctionInterface: Electric Port: RJ45 Optical Port: SC , FC , ST , LCLed Indicator: PWR，FX1/LINK，FX2/LINK，1000M L/ASpeed: 1GbpsFiber Type: 9 / 125, (Up to 20-120km)50/125， 62. 5/125 μm (up to 2km)Power Supply: AC90-264V DC48V (Internal Power) DC 12V/24V/5V (External Power)Power: ≤ 10W