It does work on Windows 10 with Intel X540-T2 in a synology-based NAS with link aggregation, total 20Gbps of speed.
Everything is perfect! It looks beautiful and new, and works perfectly! I definitely recommend getting it if you have Ethernet Category 6 S/F-TP in your home/environment. It was packaged good enough, especially given how careful DHL is. DHL was the only shipping alternative at the time I bought it. Overall beautiful, even smells nice! Goes perfectly with my X710-T4 NIC. I recommend a SFP+ network instead of 10GbE standard Ethernet, it is cheaper, but I already had my X710-T4 and Category 6 S/F-TP cables everywhere. Do not buy it if you don't need it or do not have another card/network already with similar NICs.