These have been used in an office environment for a few years. We changed our setup and no longer have a need for these. Everything is in normal working condition, with minor exterior wear as you can see in the images.

mLink product page for more info: https://www.thunderbolttechnology.net/product/mlogic-mlink%C2%AE

Solarflare 10GbE card: http://www.moderntech.com.hk/sites/default/files/datasheet/Solarflare_Performant_SFN5152F_10GbE_Adapter_Brief.pdf