Ubiquiti UFiber Single-Mode Module 10G BiDirectional 2-pack - Same 10Gbps speed, Less Cable Required. Only requires a single strand of fiber cable to operate, but still provides a full 10Gbps speed.

The 10 Gbps Bidirectional Single-mode Optical Module is a simplex transceiver that delivers up to 10 Gbps speed over distances up to 10 kilometers.

1x Fiber Patch Lead can now be used for 2x separate links thanks to BiDi

Features:

Supported Media: Single-Mode Fiber
Connector Type: 1x LC
BiDi: Yes
TX Wavelength: 1270 nm Blue 1330 nm Red
RX Wavelength: 1330 nm Blue 1270 nm Red
Data Rate: 10 Gbps SFP+
Cable Distance: 10 km