Black Box

FlexPoint Modular Media Converter, 1000BASE-T to 1000BASE-LX, 1300-nm Single-Mode, 10 km, SC

$839.65

See at Amazon.com

Sends data up to 10 kilometers (6.2 mi.) on single-mode fiber. Manual switches give you the option to control port operation. Diagnostic LEDs report power availability and status of attached devices.