10GBase-T SFP+ to RJ-45 Transceiver, 10Gbe SFP+ Copper Ethernet CAT.6a Module, up to 30-Meter, for Cisco SFP-10G-T-S, Meraki, Ubiquiti UniFi UF-RJ45-10G, Fortinet, Netgear AXM765, Supermicro and More

I bought two modules: 10GBase-T SFP+ Transceiver, 10G T, 10G Copper, RJ-45 SFP+ CAT.6a, up to 30 Meters. Of the two, one doesnt work which was very frustrating. Initially was testing both transceivers at either end, but no brand switch was working. Eventually tested the 10Gbe transceivers with 1Gbe on the other end, and that indicated one of the modules was faulty. Regrettably my bad for not testing sooner, I had assumed it was my switch gear at fault, and we are now well outside the return window. To those reading, please test your purchase properly upon delivery, and make sure to test comprehensively. Ill be evaluating other 10Gtek products, but Im skeptical of their in-house Quality Assurance for SFP+ modules.

Bought a pair of 10Base-T transceivers for a pair of Ubiquiti switches with SFP+ ports. Have used 10GTeks fiber modules with no issues and speeds at the advertised 10Gb. The same is not true for these. Both switches reported the connection at 10,000FDX. The actual throughput was around 125Mb/s, no where near the advertised 10Gb. Pulled the transceivers and used the same Cat 6 cable on native 2.5Gb ports and immediately had speeds in the 2.5Gb range. Have used the same switches with Fiber transceivers which also advertised at 10,000FDX but had throughput to match. Side Note: these units run VERY hot, burning hot. Guessing that maybe the source of the slow speeds? Regardless, I didnt realize the speed issue until I was past the return window. Will try to get them warranted, possible I have a bad unit on one or both ends... UPDATE: Received partial refund from Amazon. TLDR 10Gtek transceivers incorrectly negotiated/forced 10Gb/s on cabling that could not support it. Non-TLDR Bought a pair Ubiquiti RJ45 10Gb/s transceivers to replace these. The Ubiquiti transceivers would only negotiate 1Gb/s FDX using the same cable run. Started researching why, discovered that the cat6 run was faulty and could not support 10Gb/s speeds. Replaced run with new Cat 7 run and the Ubiquiti transceivers connected and had throughput at 10Gb/s. Lesson learned, 10Gtek transceivers were falsely claiming 10Gb/s link when cabling could not support it. That complicates the troubleshooting process immensely and feels disingenuous.

Works to connect at 10g with several Unifi switches.

Work as described. Thanks

They seem to have a 1G upload bug for WAN links. If you have Internet over 1G, use the MikroTik S+RJ10 for up to 10G bidirectional traffic on WAN.

I used it in a Sonnet Solo10G thunderbolt 4 adapter to my desktop PC to directly connect my Synology NAS. It works as advertised, superfast.

I have an AT&T fiber Internet connection at 2Gbps connected as follows: AT&T modem 5Gbe -> CAT 6A -> 10Gtek module -> UDM SE SFP+ 10Gb port The AT&T modem shows negotiation at 5Gb, the UDM shows 10Gb. This 10Gtek SFP+ transceiver is appropriately negotiating it to 10Gb on the UDM side and 5Gb on the AT&T side. When I run a speed test from my UDM, the download is correct at near 2Gbps, but the upload is throttled to around 480Mbps through the 10Gtek. When I switch the AT&T modem to directly connect to a 2.5Gbe on the UDM, the upload speed jumped to over 2.2Gbps. So, for some reason this module is throttling down the upload speed. A quick Internet search will show that this is a known problem with the 10Gtek SFP+ modules. Edit: Seller replaced with the correct module that works at the lower speeds. This one only works at 10Gb on both sides of the link. Seller was very easy to work with and help me resolve the issue...so since this was not really a product problem, Im changing my rating.

Works great in my Cisco 3560cx-12pd. Great throughput to SAN/NAS lab network.

Product works perfectly. Used it to connect from Cisco Catalyst 4500X to iSCSI SAN. I also received this T-Shirt from 10GTek after contacting their customer support with some questions that they happily and timely answered.

Im using a NAS as an external hard drive (using self-signed IP) using 10G thanks to this transceiver, as well as general NAS for the rest of the home on regular 1G 1. NAS: https://www.amazon.com/TS-932X-2G-US-64-bit-Hardware-Encryption-1-7GHz/dp/B07CVLSCSV/ref=sr_1_1?ie=UTF8&qid=1545616352&sr=8-1&keywords=QNAP+TS-932X 2. SSD: https://www.amazon.com/Blue-NAND-1TB-SSD-WDS100T2B0A/dp/B073SBQMCX/ref=sr_1_3?ie=UTF8&qid=1545616530&sr=8-3&keywords=1tb+wd+ssd 3. A way to get to a 10G network from your system, such as a 10gbe adapter for Thunderbolt 2 / Mac https://www.amazon.com/Thunder2-10G-network-adapter-T2NA-TLITS-AKT/dp/B014VAMBAQ/ref=sr_1_3?ie=UTF8&qid=1545616606&sr=8-3&keywords=akitio+thunder2 4. any RJ45, CAT6 cable https://www.amazon.com/AmazonBasics-RJ45-Cat-6-Ethernet-Patch-Cable-10-Feet-3-Meters/dp/B00N2VIALK/ref=sr_1_4?ie=UTF8&qid=1545616713&sr=8-4&keywords=cat6+cable