Networking Products
QSFPTEK 100GBASE-LH4 QSFP28 1310nm 20km LC Duplex SMF DDM Optical Transceiver Module Compatible 100GBASE-LH4
Rate: 100G; Connector: LC; with DDM EML+PIN; Low Power Consumption ≤4W Applied in Campus Network, Data Center and Enterprise Core Layer Compatible with 200+ Vendors Hot Pluggable QSFP28 MSA Compliant
https://www.bizrate.co.uk/networkingproducts/qsfptek-100gbase-lh4-qsfp28-1310nm-20km-oid40219751158.html