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.

We needed to buy some networking products to provide business traffic to airlines. And the distance between the two buildings was about 200 meters. We had taken on similar business before but met with network failures sometimes. Therefore, we needed more professional advice to make sure our solution feasible. This time we improved our solution with suggestions offered by technicians from fs, where we bought switches, transceivers and wires.

The perfected solution put network redundancy and stability in the first place. The core switches deployed in the two buildings offered 40G ports with OSPF protocol to improve the forwarding efficiency and anti-ring for better storage service. And the 40G QSFP PIR4 modules run stable without problems. These modules met our requirements for the network connection. They can realize 4x10G connection via MTP-LC breakout cable, for which we planned to use in another data center for network upgrade.

We had two Dell switches running in two different buildings in about 360 meters away. We planned to connect the two switches through multimode fiber we already had to build a 40G (4 x 10G) transmission. For that, we asked FS technician for transceiver recommendation. While we were told that our solution was not practical with MMF and got another solution suggestion.

The solution offered by FS technician was easy-deployed. Just MTP-LC single mode breakout cables for 40G to 10G transformation, 4 10G transceivers and these 40G MTP/MPO transceivers needed. We bought these products as suggested and connected them with our devices. Everything’s fine. We love this 40G transceiver pretty much since it seems to be designed specifically to work with the 4 x 10G network. No error occurred. BTW, we got this product in three days, nice logistics.

Our team planned to design a scalable and polarity-clear MTP cabling solution for our 40G connection. And due to the distance requirement, we needed transceivers that support transmission distance about 1.2km. So we ordered a series of 40GBASE-PLRL4 QSFP+ transceivers from FS. Now, they work flawlessly, with stable transmission.

Our network upgrading between two buildings was to start and we needed some 40G transceivers urgently. The FS staff gave us a preference for delivery. Thanks to them, the transceivers arrived at our site within three days. Now, they have been working with our Cisco ASR 9000 Series switch, no issues.

I bought it from fs few days ago. They provide me with a great shopping experience. For example, my account manager, she always answers my questions patiently and quickly. The FS custom solution really made me happy, I haven't seen it on other sites yet.

My friend recommends me fs.com. FS is significantly cheaper than other sites. The QSFP-PIR4-40G I purchased is very cheap, and I have not found any difference with other products.

I am really satisfied with their fast after-sales service. After searching on their website, I directly purchased 2pcs 40GBASE-PLRL4 from their website and I received the transceivers 2 days later after I placed the order. After test, unluckily, the transceivers can not work with our device. After confirming with their C&S, I was informed that for our EX4600,
I should choose Juniper compatible rather than generic compatible and she told me RMA form will be sent to me by my Account Manager when they get back to work. Truly, I get the RMA form 2 hours later and new ones sent to me around one week.

When I purchased 40G QSFP+ PLRL4 optics, my Account Manager Molica recommended the MTP trunk cables to me. Now all products are purchased and received, the Type B MTP trunk cables+ 40G QSFP+ PLRL4 optics are working well. I have to say the staff in Fiberstore is so professional.

My partner recommend FS.COM to me, and he said FS.COM is able to offer very competitive quotes for various optics. It is indeed true. I bought 40GBASE-PLRL4 & MTP cables in bulk. Vicky had helped me save a lot. They are all working well at my data center now. After enough testing time, I will switch the modules for my rest 9 data centers.