perfect mudule, works right away

Use an MTP female 12 fibers Type B OS2 trunk cable to connect two 40GBASE-PLRL4 optics. Product build quality is top notch, so is the performance.

PLRL4 QSFP+ module works well with 10GBASE-LR SFP+ transceiver modules. FS optics are easy to install and plug & play.

Our device is from Edgecore. We asked the AM if the 40G module can work with our device. The guy checks the datasheet, and offers us an affirmative answer. We get the item, and practically it operates well on the Edgecore.

Wanted to use the 40G module to do 4x 10G connections. FS guys told us the module could do this and recommended single mode MTP harness cables to connect the module. Bought the modules and MTP cables together. They achieved 4x 10G links.

Our Catalyst C9500 and Nexus 92160 switches instantly recognize these modules, bandwidth and transfer speeds test exactly as expected. Have used other FS transceivers in the past and they've always worked great. These are no exceptions. Price is fantastic.