10Gtek 𝟭𝟬𝗚𝗕𝗮𝘀𝗲-𝗧 𝗦𝗙𝗣+ 𝘁𝗼 𝗥𝗝-𝟰𝟱 𝗧𝗿𝗮𝗻𝘀𝗰𝗲𝗶𝘃𝗲𝗿, 10Gbe SFP+ Copper Ethernet CAT6a Module, up to 30m, for Cisco SFP-10G-T-S, Ubiquiti UniFi, Fortinet, TP-Link and More

Confirmed compatibility with Mellanox ConnectX3 series 10Gb dual port card. Used in a custom PfSense firewall gateway. Only complaint I might have is that it's reporting a 10Gb link, even though it's connected to a 2Gb port on a cable modem. This is minor though, it is connected, and I'm getting close to 900Mb throughput from my broadband, compared to the 420Mb i used to max out. (this is mostly due to properly configuring stream limiters in pfSense, not necessarily this gbic)Firmware on this card had already been reverted to OEM from the Dell it started with, and downgraded a couple versions back for it to properly accept a 1GB module from ebay. So i can't say whether this module would have required this as well, but if you have difficulty with it in a Dell/HP version of a Mellanox card, this is likely what you'll also have to do--those versions of the firmware like to lockout the use of non-optical/3rd party modules.

Item is not compatible with certain Intel cards, because if you use Intel equipment. It will either not work at all, or if you do happen to get it to work, it will only link at 1gb. Tried a different module, and instantly connected at 10gb.Update- 7/15/2025Even after I had returned the transceiver, 10gtek messaged me about the compatibility issues. They were confident they could fix the compatibility issue. So even tho i had already returned the transceiver and gotten my money back, they asked for my address and mailed me another model to try, FOR FREE!!! And it works perfectly. Get consistent 10gb speeds with over 50ft of ethernet, great transceiver. And my hat off to 10gbtek, I have never had this level of support AFTER a return. They are quick to answer questions, and will not stop helping you until your issue is solved. THANK YOU 10GTEK!!!!! Best customer service I have seen in this day and age.

This transceiver worked great in another switch I purchased from Amazon with a no-name Chinese company. I also used it in media converters (fiber to copper) for connecting directly to my computer. It automatically negotiates the speed and was extremely easy to install. It was also compatible in my Intel X710 network card that runs the network for my server to connect to my coax cable modem. The fact this SFP supports multiple speed options is also great because I connected it to a switch with only 10G but it worked fine connected to a 2.5G copper RJ45 jack without any errors, so it must negotiate and rate limit within itself.

Excellent SFP+ Module. Came in a very nice and minimal package, plugged directly into the SFP+ Port of my Sophos CS110-24FP Switch. I first plugged in my machine's 1Gbps port and got 1Gbps link, then I plugged in the 10gbe port and got 10gbps over ~12m of Cat5e. Great stuff! It wasnt perfectly documented if this would be compatible so I am really happy to see it's plug-and-play. I went ahead and ordered the 1/2.5/5/10gbps model to test on some other devices.

Update: 10GTek reached out to me and offered a refund if I returned the adapter. The thing that I most appreciate, however, is they asked for a lot of information about my system and how it failed. They want to test the returned unit to see why it was acting this way. I can't ask more of a company than to stand behind their products and try to better them as they find issues. I would be very comfortable buying more products from them knowing now that they will stand behind their products past the 30 day return window.This worked great for about 45 days as the WAN adapter on my Ubiquiti UDM, then all of a sudden I started having all kinds of speed problems, latency, and dropped packets. It correctly negotiated the port speed on the ethernet side (5Gb) and never ran hot. I thought it was an ISP issue but when I removed this adapter and went straight into the 1Gb ethernet WAN all of my problems went away. This is absolute junk and now the return window is closed.

Works like a charm, but very hot. Stayed within the documented temperature range/norms when I checked with my thermal camera so I don't expect any issues. The heat makes me nervous for my kids long term however, so I am using this as a short term stopgap.

I am adjusting my review, great company to work with, they worked tirelessly to resolve the issue, I would buy from them again.Original review:I purchased to use in their card (10Gtek) and it went into recovery mode, the company doesn’t provide and info on how to fix it, no firmware update provide through the company, need to depend on intel website and try to match card to intel products

I bought this to add RG45 to my Unifi Aggregation switch. I was able to run 10gbE but these ran so hot that I decided to get an SFP+ optical cable instead. Problem was that this transceiver got stuck in the port and there was nothing I could do to remove it. After two hours of trying to find YouTube videos showing how to remove stuck transceivers, I had no choice but to use pliers and remove it by force. Of course the force destroyed the handle and the plug arm. It became unusable. Wasted money if you ask me since it can only be used if you never ever plan to remove it from the port.