I needed some QSFP+ 1310nm 2km, then I found FS.COM by google. I was really impressed by their exquisite pages. I could find all product information, pictures, test video, and related recommendation like switch. All my questions have been answered and I didn't need to inquire the customer support. So I placed an instant order and I receive it now. I will share more test result later.

I did a lot of research on FS before making an order, and found that they have a complete product lines from 100BASE to 1000BASE to 10G, and even 40G/100G, FS can provide all of them. I bought the 40G at this time, it's working very well in my switch now. And I noticed the customer reviews of their website are almost positive. It is worthy to believe.

I ordered total 4pcs of this optics, but I was informed that it met custom clearance, and I was asked to offer FDA ACCESSION number. I haven’t heard of an accession number before so I had to ask for help from my Account Manager To my surprise, their optics not only passed CE, ROHS, and FC certification, but also got FDA number, so I received my package soon. Thank you so much.

Due to the special requirements of our project, the optics need to be customized with our own part model, our company logo and bar code. So that they can be easy distinguished. Fiberstore can provide this service, now we received the modules. Works perfectly as expected in Juniper QFX3500, they haven't skipped a beat!

I recently worked with 40GbE network. I just had a crazy idea to find a 40G QSFP+ optics that could both work with MMF and SMF cables. Actually, it seems impossible for me because I have never heard about that in my experience. But Google showed me this product and took me to fs.com. After reading their product description carefully, I decided to order two pairs of them for testing. Items arrived soon. can't wait to use, worked as described. Well done!

I have Cisco Nexus 9000 series in our data center. I happened to see this equipment was on FS page, platform support. And I clicked around their website. Their test photos are very clear that convinced me their compatibility. And I registered in their website and got the response from the sales soon. I was happy with all QTY in stock. So there is no need to worry about lead time. We tested all the QTY last week, so far so good! Their quality and service is really amazing! And I'm considering to choose more compatible transceivers now! Really great shopping experience.

Starting doing business with FS.COM since 2016, usually, I mostly purchased from FS.COM are 1G/10G transceivers because their price is so attractive after comparison. Besides price, to my surprise, their package and quality is so good which totally meets my expectation after I receive the parcel every time. For their transceivers, they use Anti-Static Plastic Packaging Clamshell Box to store the transceivers and I do not need to worry about damage of the transceivers during transportation. Also, since the Packaging Clamshell Box is clear, I can know which type the transceiver is without opening the box, so convenient. This time I bought 20pcs 40G-PIR4 from FS.COM because we want to upgrade data rate of our data center. Since I have not purchased 40G products from FS.COM, I was worried whether their products can work well with our device like their 1G/10G transceivers, but my Account Manager Holly showed me their powerful “test bed” and other customers’ feedback to me which persuaded me to have a try. After 3 days waiting, fortunately, the transceivers work well with our device, will come back to purchase matched series products later.

Well I was in a rush to build my date center and need 40G QSFP+ urgently, just my luck to find the FS.COM. The price seemed good, actually better than the other suppliers were selling it , and the shipment is fast. Thank you.

Account Manager sent in quotes I asked for and they shipped the product the day the PO of the Juniper 40G optic arrived. Everything arrived as expected and in excellent condition.

Exactly as described, works great. For the user, though, it's a piece of cake - plug into the switch, insert the fiber, done.