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I set up an enterprise VMware environment at home for certification purposes as well as keeping my skills fresh and keeping my thumb on the pulse of technology. Doing so, a 10Gb network is a must and you need to source cables somewhere. Angry at myself for throwing out 60 or so of these cables at my job 2 years ago, I had to buy some.. and they arrived fast and definitely work great. The only thing to be aware of is that the pull tabs to release the cable don't all work properly. It's a well known fact that you sometimes have to push the cable in while pulling the tab to release it, but that trick doesn't work here. You have to use a paperclip to slide into the slot carefully release it. For that reason, and only that reason alone I have to take away a star.
I like these cables because they are more durable than fiber cables and I have switched over to these DAC cables going from my two servers to the 10gb switches and all have worked flawlessly and these DAC cables come with the SFP+ modules included
This DAC cable is well built and works perfectly with my Solarflare SFN7122F and Intel X520-DA2. My OEM Intel X520-DA2 doesn't accept non-Intel SFP+ but this cable works perfectly. Testing throughput with iperf3 gives me 9.9Gbps (MTU set to 9000) and I couldn't be happier with the result.
This is my 1st 10GTek purchase and I will definitely consider their products moving forward.