10Gtek 10GBase-LR SFP+ Transceiver, 10G 1310nm SMF SingleMode Fiber Optic Module, 10km, for Cisco SFP-10G-LR, Meraki MA-SFP-10GB-LR, Ubiquiti UniFi UF-SM-10G, Fortinet, Mikrotik and More, Pack of 10

Use these with some Qnap switches to run fiber downstairs. Zero problems and great throughput. No dropouts or connection issues at all.

Plug and play, worked perfectly on my QNAP NAS and Ubiquiti switch!

Fiber SFP modules are VERY specific by Application and you have to know EXACTLY what you need to get before purchasing. Single Mode fiber or Multi Mode? What Optical mode? What core diameter? What distance rating? What interface type?, LED or Laser? SFP or SFP+? Finally, what is the network switch equipment manufacturer and is the SFP compatible with that manufacturer? I wasted a bunch of money on another brand that was supposed to be Meraki compatible and none of them worked. Then I went back to 10Gtek and they all worked. Also, 10Gtek is 10% of the Cisco Meraki made SFPs price which are $330 and up!

Excellent product and works perfect in my enterprise level Cisco and Juniper routers.

While we did test this SFP, it did not work with our application. I do not think it is a fault of the item, more of our application. We were trying to communicate from a Cisco switch to a Phoenix Contact copper to fiber adapter. The wavelengths are the same, but trying to COM from laser to high powered LED might not work. There is no data to say either way. I can not fault 10Gtek in any way without proper testing. They did at least have an item that was hard to find. Good Job there.

10Gek is a great company with excellent products. They deliver on time, have professional customer service and amazing products. We recommend them all the time.

I use these in my Unifi equipment for true 10G speed. Thanks!

They work fine in the switches but in intel nic cards in the servers it will create weird issues I have to alter some kernel parameters to make them work.

not much to say, works as advertised and did the job i needed.