Retelistica
There are 3 products.
Extralink SFP+ 10G 2-pack 2km DOM
Extralink SFP+ 10G 2-pack SFP+ Module 10Gbps LC/UPC 1310nm 2km single mode DOM
Extralink SFP 1.25G 2-pack 20km DOM
Extralink SFP 1.25G 2-pack SFP Module 1.25Gbps LC/UPC 1310nm 20km single mode DOM