Networking Products
QSFPTEK 1000BASE 1.25G SFP 1550nm 120km Transceiver Module Compatible Intel GLC-EZX-SM-120
Connector: Duplex LC; with DDM Low Power Consumption <1W Ideal for Campus network, Metro network, Long-Haul etc Hot Pluggable SFP MSA Compliant
https://www.bizrate.co.uk/networkingproducts/qsfptek-1000base-1-25g-sfp-1550nm-oid40219779292.html