As you know, the price of SFP28-25GER-31-Imodule is 279,00 € and the price of SFP28-25GER-31 module is 799,00 €.
Please tell me what is the difference between these 2 modules.
The interesting thing is that the industrial module is cheaper.

Good news! I got the parcel today and all is well! I’m officially operating at 10Gb! You’ve got some fantastic products and unbeatable customer service.

I really appreciate your help and the high-quality products FS provides.

You're absolutely amazing. Thank you so much for the fantastic service!

I wanted to let you know how happy I am with your products!! I’ve successfully set up my new modules, and I’m up and running at the fastest speeds I’ve ever had!

I ordered my goods through your website and one day later they are already delivered. So you delivered the goods from your German warehouse to a Belgian location in one day … and that’s without asking for a faster delivery. That’s amazing these days. You guys know what you’re doing. I'm gonna change de initials of FS into Fast Service.

The services impressed me. Thank you Jane. The help is always prompt. These 25G modules are certainly very professional. Working for long distance is no problem. We are glad to find what we want in such a short time. Nice website.

No issues. Everything works as expected. The modules connect well. They are important to our system. Shipping time was short too. The order details can be tracked easily. We can’t ask for more. This buying is very perfect.

I ordered these for my Cisco switches for fiber connections. Haven't had any issues whatsoever with these modules. They also work well outdoor. Haven’t let us down.

I bought these modules together with their 25G switch. The quality is excellent and there are no issues with data receiving and transmitting. Just perform as what they tell me.