Main Features: 1.Support the switch between 10/100/1000Base-TX and 1000Base-/LX. 2.2 x 1.25Gbps full-duplex fiber ports and 4 x 10/100/1000M Ethernet ports with auto-negotiation function. 3.Support 1000M speed rate, /MDIX and half/full-duplex with auto-negotiation function. 4.Each port has the complete LED Indicator light. 5.Support single mode single fiber,single mode dual fiber ,multi-mode dual fiber and SFP slot 6.Support IEEE802.1d Spanning Tree. 7.Support high performance function on each port. 8.Support 5-12V voltage input. 9.Support IEEE 802.3x flow control and back pressure control. 10.Require no configuration and will instantly operate as soon as you power it up. 11.Low power consumption chip with heat sink built in to longtime efficient operation It has 4 x 10/100/1000Mbps Ethernet ports and 2 x 1.25Gbps fiber ports. It adopts Marvell chips to low power consumption and high stability. It extends the transmission distance of a network from 100m to 120km via copper cables. It can extend the transmission distance; there are also many other advantages such as isolation protection, good data security, working stability and easy maintenance. Standards IEEE802.3 10Base- IEEE802.3u 100Base-TX/FX IEEE802.3z 1000Base-/LX IEEE802.3x Flow control IEEE802.1p IEEE802.1d Spanning Tree Ethernet Port Connector: RJ45 Data Rate:10/100/1000M Distance: 100m UTP Type: UTP-5E or higher level Fiber Port Connector: SC/FC/ST/SFP slot Data Rate:1.25Gbps Optical Wavelength: 850nm/1310nm/1490nm/1550nm Distance: 550m~120km Performance Processing Type: Store and Forward Table Size:4K/6K/8K Buffer Space:500kbs/1Mbit/2Mbit Jumbo Packet: 1518 bytes Back bandwidth:3.8G/5.6G/7.2G Time Delay: Less than 150s Transmissin Di Twisted Pair: 100m (CAT5e, CAT6 cables) Muti-mode: 2km Single-mode:20/40/60/80/100km MTBF 100, 000 hours Environment Storage Temperature: -40~70 Operating Temperature: -10~55 Relative Humidity: 5-90% ( no condensation) Mechanical Structures Dimension: 215x107x26mm color: blue Material: PC+metal Due to different product batches, the appearance may be different, which does not affect use. Package Contents: 1 x Ethernet Converter PCB(No power adapter) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.