10GTEK 1.25G SFP-T, 1000BASE-T Copper SFP, SFP to RJ45 SFP Module Transceiver for Cisco SFP-GE-T, Meraki, Fortinet, Ubiquiti UniFi UF-RJ45-1G, D-Link, Supermicro, Netgear, TP-Link and More

I rarely write reviews. But I did want to say I had zero luck getting this to work on a mikrotik crs309. I will say though they dont have mikrotik listed anywhere in their description or photos, I took the risk based off of other reviews and it didnt plan out. HOWEVER I will still give this 5 stars based off other reviews for manufactures that are listed & the solid price. tl/dr: Didnt work with my mikrotik gear, still seems like a solid product.

These are great SFPs at a great price! But in addition to that, I want to give major kudos to the 10Gtek support team. We made the mistake of selecting the wrong variation of SFPs for our switch. It was our fault, not theirs. Nonetheless, their customer support team arranged for us to send them back in exchange for the correct model! They had no obligation to do this as we didn't realize our mistake right away. But unlike so many other companies on Amazon who will find any excuse to not support you, they went the extra mile to help us resolve the issue we created! You really don't find that much any more. Plus, the agent I spoke with communicated very clearly (important when technical details are critical), which is also uncommon these days. So I wanted to share our experience of excellent customer service by the 10Gtek team. That speaks to a company who has the right focus--the customer! We will continue to buy their products, that's for sure.

These are fantastic little modules! They don't get hot, they're reliable, they get full gigabit speed, and despite what other reviews have mentioned, all four of mine worked perfectly in a MikroTik CRS309 and CRS305 and have had zero downtime or issues. The only thing that doesn't work is auto-negotiation -- you'll need to set the link speed manually in the switch's software. As someone who had never done it before, it took me less than a minute to set the ports to 1 gigabit speed, and I haven't had to touch them since. Highly recommended! The four pack even comes in a cute little tin with an insert to store other SFP modules if you have unused ones kicking around.

I bought this to use as a fall back for my UDR7. Main WAN is on my 1GB cable and the secondary WAN is a Verizon cellular back up internet. This adapter allows me to plug both in, so if/when cable goes out, the backup kicks in automatically.

Not compatible with a MikroTik CRS309. It seems to work well in a USW Pro XG 8 PoE. It also works in a Cisco SG102-24.

Great purchase! Very happy with the performance of this module. Has somehow improved latency with stability connecting to my router with no heat issues and an increase of bandwidth in my internet connection. A cheap upgrade with compatibility extending further than Cisco branded equipment as I am currently using a generic POE switch with noticeable improvements over my previous patched setup.

Needed something temporary for the Cisco C8200 SDWAN so we could provide a temporary DHCP WAN connection for staging and remote connectivity by the network team. This worked well. Plugged it into GigabithEthernet0/0/2, recognized right away.

Worked great allowing me to add an additional port to my Ubiquiti Edgerouter. Plugin in, enable to port in the software and away you go.

Wotks like charm in my Cisco 3750-x 12 port fiber switch. And also in Cisco 2960-x....recommended to every network person....go for it guys.thumbs up

Fonctionne est à régler mes problèmes de flapping sur UniFi.

Perfect for Roger's cable internet. You could use a sfp+ port to get higher speeds into your network. Most rj45 ports are one gigabit. These adapter allows uo to 10gbe speeds. The speed is usually maxed out via Roger's at 2.5 gbe symmetrical.

Worked perfectly for Cisco MX95

At this price, thought I would try it out since my US-8-150W has those 2 SFP ports I don't use. Well to my surprise, and still unexplained, I actually get a better transfer rate from these than the RJ45 ports!? Would 100% recommend.