So I usually dont take really stupid risks... but this time i did.
First some history
Im about to move into a house where my office will be on the 3rd floor but obviously the telephone line is near the front door. My first thought was running a CAT6 cable up there, but after looking at the run and how many bends it has to make, whilst at the same time remaining hidden from children and a nibbly puppy, I had a bit of an idea....
"Those two switches I have" (Cisco SG300)... "they have an SFP on the front of them"... "I wonder how much they are..."
Bit of a look about to learn about what kind I would need, Official ones like £50-60
Compatible ones from a reputable seller with good reviews £20-40
then I came across these...
https://www.empowerfiber.com/p/mgblx1_tr2866
I checked out the reviews and they seemed... fake.. tbqh. Everything in my body was telling me DONT DO IT.
But I did it...
£10 for 2 single mode SFP, with free delivery.
Took 10 days to arrive, I gingerly plugged them in and... THEY WORK. I haven't thoroughly tested the speeds with them but they register as 1Gbps modules
They probably dont have anywhere near the rated output power and the chinese government are probably slurping up all my data, but hell, for ~10% of the price of official ones I'll take a punt at some Chinesium knock offs