Convert Fiber to Ethernet: Designed to convert 1000BASE-SX/LX fiber to 1000Base-T copper media or vice versa. Versatile Compatibility: Works with both single-mode and multi-mode fiber SFP modules and is fully compatible with 10/100/1000 Base-T Ethernet connections. Easy to Use: Plug and play with no software installation or configuration needed. Auto-Negotiation Gigabit Connection: Auto-negotiation RJ45 port supports Half-Duplex/Full-Duplex transfer mode and auto-MDI/MDIX. Long-Range Transmission: When used with different types of SFP modules, the Hot-Swappable FX Port extends fiber distance up to 12.4miles (20km) for Single-Mode transmission and 1,800 feet (550m) for Multi-Mode transmission.