We got the product installed, and I happy to report it works like a dream. This was exactly what we needed.

Ordering from your company has been amazing so far, getting things quickly in a pinch has saved me twice now!

I’ve purchased DWDM products a lot of times for my company in FS. The amplifier modules worked well in the FMT chassis. There have been no issues since we built up the network.

The support staff went above and beyond to help me out.The physical connection is displayed in a visio draft. Which case holds which module, fiber patch cables are pulled from which ports and end in which ports are all presented. The instruction is so clear that I did not waste too much time on figuring the procedure. Thump-up for these great guys and their considerate service. I'd say to buy from them directly if you can.

Got a dozen of EDFA-BA with AGC (Automatic Gain Control) mode. Their customer service is prompt, responsive and accommodating for any of your needs.

Used the EDFA in our 16CH DWDM system. Our link was about 60km. FS guys suggested that we’d better use this item with the 80km SFP+ module. They explained that we should use this product to ensure the whole link loss less than 20dB, so we could get a 3dB margin. We finally bought the boost amplifier, the 80km SFP+ modules and FMT chassis for accommodating the EDFA, and asked FS team to deliver the goods fast. They contacted their local warehouse in Delaware. A few days later, we got the items. We installed them in our system, all worked and zero packets lost. This was our first deal with FS, the professional team and good negotiation made us impressed. Would like to shop again.