Brocade 40G-QSFP-LM4 Compatible 40GBASE-LM4 QSFP+ 1310nm 2km DOM Duplex LC SMF/MMF Optical Transceiver Module

Very happy with the modules and services offered by FS.com. I ordered QSFP+ modules to fit for my computing networks. They can receive and forward without frame loss. Customer service was excellent, I had queries to the technical team about what I was ordering and to the sales team about the delivery, each time the response was helpful, accurate and professional.