StarTech.com 1000 Mbps Gigabit Single-Mode Copper to Fiber Media Converter - Ethernet (1000Base-T) to LC Fiber Converter (ET1000S40LC2) - Fibre media converter - GigE - 1000Base-LX, 1000Base-SX, 1000Base-T - RJ-45 / LC single-mode - up to 40 km - 1310 nm - for P/N: SVA12M2NEUA, SVA12M5NA

Convert and extend a Gigabit Ethernet connection up to 24.8 miles/40km over Single Mode LC fiber. The ET1000S40LC2 1000 Mbps Gigabit Single-Mode Fiber Media Converter (LC, 40 km) enables you to extend a Gigabit Ethernet network over single-mode fiber, at distances up to 40km (25 miles).
A cost-effective solution for connecting a Gigabit Ethernet (1000Base-T) network to remote network segments over a (1000Base-LX/SX) fiber backbone, the GbE to SM fiber converter supports full Gigabit speeds for ideal network performance and scalability. Designed to offer a durable and convenient Ethernet to fiber solution, the Ethernet to LC Fiber converter features an all-steel chassis, and a simple plug-and-play installation with minimal configuration required.
For added versatility, this fiber media converter supports standalone operation, or installation into the 20 Slot, 2U Rackmount Chassis (ETCHS2U).