What You Get – 2* Gigabit Ethernet SFP to RJ45 media converter; A pair of 1000Base-LX Bidi SFP Module; 2* Power Supply; 3-year Warranty, Free Lifelong Technical Support. Reliable Auto-Negotiation Gigabit Connection – 10/100/1000Mbps Auto-Negotiation RJ45 Port supports Auto-MDI/MDIX Crossover and Half-Duplex / Full-Duplex Transfer Mode, bridging different network speeds and devices to a Gigabit fiber network. Plug and Play – No software installation or configuration required. Hot-swappable design makes this ethernet fiber converter easy to install and troubleshoot. Extend Your Transmission Distance – By using this ethernet fiber media converter, you can easily extend link distance up to 20 kilometers via OS1/OS2 single mode fiber (SMF, LC, Simplex). Seamless Conversion of LC Fiber to Copper – This fiber optic to ethernet media converter kit includes a Pair of single mode BiDi SFP LX Modules, which enables you to convert 1000BASE-LX LC fiber to 10/100/1000 Base-T RJ-45 copper media or vice versa.