StarTech.com Singlemode (SM) LC Fiber Media Converter for 1Gbe Network - 20km - Gigabit Ethernet - 1310nm - with SFP Transceiver, TAA (ET91000SM20) ^Sale

ETHERNET OVER FIBER EXTENSION: Use this full / half duplex fiber media converter to convert and extend a Gigabit Ethernet connection up to 20km (12.4mi) using singlemode LC fiber cable.
• INCLUDES SFP: For added convenience, this IT-grade network fiber media converter includes an SFP transceiver, enabling an 1310nm LC single mode Gigabit fiber connection.
• PLUG AND PLAY: This singlemode fiber media converter provides a quick and easy setup. It can be used as a standalone device or installed into the 20 slot 2U rackmount chassis (ETCHS2U).
• MAXIMUM DURABILITY: Built to withstand harsh environments, this rugged media converter has a durable steel housing, and has an operating temperature range of 0°C-50°C (32°F-122°F).