Works like a charm in a Ubiquiti UDW in combination with a KPN internet connection. Simple installation, no extra drivers needed. Setup of the ubiquity SFP WAN port, just make sure to setup 1GBPS FDX as fixed (not auto).

Great module.
Works perfect with KPN fiber and Ubiquiti USG4 pro.
Fast delivery.

Recieved faster the expected. Working great in UDM pro with KPN (Netherlands) (Only need to set SFX speed to 1GB instead of auto in the UDM). Nice updates of order status. Added to favorit suplieers..

Works great!

In hindsight I should have gone for the 'Generic' variant and fill in the 'Device Number' field. I did both at some point, but then press 'Add to cart' on a different tab I guess...
Nancy confirmed there would be no compatibility problems in advance with my Unifi Dream Machine - Special Edition (Ubiquiti UDM-SE), and had to deal with me not noticing certain questions the first time around... Thanks Nancy!

Leaving some breadcrumbs for others in my situation:
My ISP is Freedom Internet via KPN NetwerkNL. (WBA: KPN Wholesale)
For ipv6 to work the mtu on the ppp0 interface of the UDM-SE must be 1500, not 1492. You can not configure this via any GUI, be prepared to ssh into it and do it yourself: https://community.ui.com/questions/Feature-Request-UDM-Pro-PPPoE-RFC4638-1500-MTU-MRU-for-PPP/b5c1fcf6-bee5-4fc7-ae00-c8ce2bf2e724#answer/e1c5e332-97e9-4504-9987-945ec28a57a4

Definetely worth the money since not renting a modem-router saves me 2 euro a month!

This product is amazing. Used it to replace normal TX & RX SFPs and freed up 50% of my physical fiber

The package arrived on Friday as expected and the item functions perfectly. I have nothing but positive things to say. The item was priced well, the ordering process was easy, and the shipping was fast. I will definitely use FS in the future if I need other fiber modules or networking devices like this.

Brilliant pre-sale, amazing follow up from account manager and simply works as expected right out of the box. I do realise that these are sold in bulk, but perhaps for the smaller sized orders you might think of smaller sized packaging; however I do realise that this may be less economical for yourselves

Everything is fine. The product works very well.

I often buy products on FS.COM, this time did not let me down.

Unbeatable price, fast shipping, high quality.