You can learn more taking this module apart than from some MIT courses. Totally worth the money.

Used the module for our 20km link. FS guys advised that we’d better use fiber attenuator of 5dB to ensure the performance over the link. We took this advice, and bought the module and attenuator together. My link was stable without any packet loss.

Looking for cost-effective SFP DWDM fiber modules in our building to building run (18km and 32km). We did research about FS, and knew that FS had already designed many OTN cases for different industries. Then I sent our building to building network project to them, and asked them to mark a clear connection for each node. Promptly, we received their reply. They drew a whole connecting diagram, and marked the products that we needed next to the corresponding link. The man also calculated the fiber loss for us. He emphasized that we must use a 5dB fiber attenuator for our 18km link, while 32km didn’t need it. We were very happy with the man’s explanation about products and his expertise. And we quickly ordered the modules and fiber cables at FS. All is good.

Man kann leicht zusammenstellen was man brauch und bekommt schnell sein gewünschtes Produkt :)

Super netter und kompetenter Support bei Fragen oder sonstigen Anliegen! Schnelle Bearbeitung von meiner Bestellung besser geht es nicht mehr... zu empfehlen? definitiv !!!

Wir haben bereits viel Kabel bei FS.COM bestellt. Die Module laufen zuverlässig, Preis und Qualität stimmen und die schnelle Lieferung ist einfach top

kompetemter freundlicher Service. Gestern bestellt heute Versand. Immer wieder gerne!!! Aber ich hoffe, dass die Lieferung aus Deutschland schneller läuft.

Super Freundliches Personal und Super schnelle Lieferung!! 5 Sterne für alles. Super!!!

I knew FS on internet by chance and their website attracted me firstly, later I tried to buy new DWDM transceivers for my project, but I was concerned about the quality. The sales Daisy is so kind, and she provides me the test information on original switch Juniper MX960 and the test result turned out to be pretty good. I am happy to buy optics from FS.

Ich bin sehr zufrieden. Super Qualität, Super schnelle Lieferung. Kann man nur weiterempfehlen.