Ubiquiti 1 Gbps Bidirectional Single-Mode Optical Module, 20 Pack SKU: UACC-OM-SM-1G-S-20 Tech Specs: Click Here Features: •Single-mode, simplex, fiber transceiver module. 25 Gbps throughput •Simplex LC connector •Supports connections up to 3 km* •*Fiber cable is not included. A pair of reliable Ubiquiti SFP UF-SM-1G-S modules Ubiquiti UF-SM-1G-S is a pair of U Fiber series SFP modules operating in two-way (BiDi) mode. UF-SM-1G-S single-mode inserts send and receive data at 1550 nm and 1310 nm wavelengths. They are equipped with LC output connectors. 25 Gbps SFP+ Cable Distance: 3 km 12 MonthCheaper by the carton.