Looking for cost-effective SFP fiber modules in our building to building run (12km and 30km). We already knew that FS had designed many customized cases for their clients, so we sent our project design to them and asked them for a clear connection for each node. They always replied in prompt service and provided us a whole connecting diagram. Also they marked the products we needed in the diagram below. We were very surprised by their professionalism and expertise. After negotiation, we decided to go with their suggestions and bought the modules and fiber optic cables here. Installed these modules on my Cisco switches, they offer a stable transmission for them without any compatibility issues or packet loss. Five stars for the good products and friendly people at FS. Excellent shopping experience here!

These modules were immediately picked up by my Cisco 4500 WS-X4724-SFP-E switches. After I plugged it into the port, the link promptly came up. Zero packet loss and no delay. Pretty high quality for someone who is looking to work with SFP and fiber in their project.

Used the module to connect Cisco C9200L and C2960L models. Before ordering, we asked the sales about the compatibility and the answer was yes. We installed the module on our devices and did the test, it worked as advertised.

Bought the SFP module #20358 and converter #35333 to upgrade the existing copper system to fiber. FS recommended this connection. It worked, quite a cost-effective connection to upgrade to fiber system.

Packing is very professional. High quality. Fast shipping.

I'm buying this for testing purposes at first but surprisingly it really works

I am a very novice user. I just told the sales what kind of switches I have( Cisco ASR 1000x and Cisco 2960x), then The team at FS.COM helped me order the right products and they arrived via international shipping within the week. Very impressed and very happy. Everything just works. Thank You !

This is another delightful deal in fs. We sent a mail requiring for some special 1000BASE-EX optical transeivers and and the Account Manager contacted us and helped us place the order in the custom page. Everything is accurate and prompt. It's wonderful to have fs there as our partner.

product complete and excelent servive

This 1g ex module was received ten days ago. I did not write my review right after I got it because I believe quality of the product is more important than beautiful parcels and the other things. I comfirmed its compatibilty by using it in several different machines. Also I checked its DOM information on the CLI. Nothing bad appeared but only normal operation in the system. Good compatible module so long.