Welcome to our store! Universal Compatibility: Ethernet transceiver works with SFP modules for single-mode and multi-mode fiber optics and is fully compatible with 10 Mbps 100 Mbps 1000 Mbps Base T Ethernet connections. Long Distance Transmission: When used with different types of SFP modules, the FX port can be swapped while running to extend the fiber distance to 0 to 120 km. LED Indicators: Easy-to-see LED indicators provide status for easy monitoring of network activity, compatible with IEEE 802.3 802.3u 802.3af. TX, FX LINK ACT, POWER, FDX status LEDs make it easy to monitor network status. Transmission Mode Support: Auto-negotiation Gigabit connection, auto-negotiation RJ45 port supports half duplex, full duplex transmission mode and auto MDI MDIX. Plug and Play: Fiber media converter plug and play, no installation or configuration software required, 100‑240V plug voltage. Item Type: Fiber Transceiver Material: Metal Plug Voltage: 100-240V Supported Protocols: IEEE 802.3i IEEE 802.3u IEEE 802.3ab IEEE 802.3z Data Rate: Optical port 1.25Gmbps, Electrical port 10/100/1000 Mbps Port: SFPx2 Package Includes: 1 x Fiber Transceiver 1 x Power Adapter 1 x User Manual Customer Satisfaction - Customers are our top priority. If you find any problems with the product after receiving it, such as damage and incorrect quantity, please contact us immediately. We will do our best to provide you with satisfactory after-sales service.