Worked great for me! 10GBe on an old server card I got off eBay

Came in a nice little metal case I can use for something else.

Good price and works as advertised. Tested links at 1, 2.5 and 10G

Good Value SFP+ Connector -- Works with Ubiquiti Dream Machine (UDM) Pro and allows 10G connections. Runs a little warm to the touch, but that is as expected.

Worked to add another port on a QNAP TS431XeU. I dont have a 10GB switch so its currently working at the 1GB speed.

Worked great in my ubiquiti unifi 48 port switch in the sfp+ port. Used to get 10g speed to my dell servers 10gig copper ethernet port

I have a few Linksys managed switches and a few smart switches (similar to a managed switch with no layer 3 functions or console port). They primarily use traditional copper ethernet cables, but they each have two SFP ports for fiber. In theory these can be used for any purpose, but in practice theyre best saved for when copper cannot cut it. I use them for 30-40 meter runs in my home that get snaked through the garage and end up under baseboards. Fiber is really thin, so it can fit under the baseboard. Fiber is immune to crosstalk, so the various runs being right atop each other wont interfere. Of course another use for be extremely long runs or runs through an industrial area with loads of magnetic interference or other issues. Lastly, fiber doesnt conduct electricity, so it wont spread havoc if a connect device gets struck by lightning. Anyway, these SFP modules just plug in and work. I used Monoprice LC to LC fiber and these on both ends (in Linksys switches). Works great.

Bought these for an Aruba 1930 Poe 8 port switch. My 10gb transceivers wouldn’t work in the sfp port, these did the trick.

These seem to present themselves to the switch as SR optics (SFP-10GBase-SR) which means they seem to work even in switches that explicitly dont support 10Gbase-T. Not sure if this is typical or not. I havent done any long-term testing but am very happy to be able to bring copper 10G to my relatively ancient 3750E and 3750X switches.

Bought one to test for an ODroid H2+ / Ubiquiti US-16-XG cluster deployment. After updating the drivers for the Realtek 2.5GbE NIC I was able to hit 2.3Gb in iperf3 easily. Will be purchasing more.