Computers, video cards, disk drives, projectors and more.
Today I got the Razer Core X in, tomorrow I am expecting an VEGA 56 with 6 outputs, since an W9100 was really out of budget. Next week I will do some tests with a 15 inch MBP 2016, but on High Sierra. (I assume Izzy 2.6.1 is not working on Mojave yet?) The Raze Core X is absolutely a great design, the way you can slide out the whole PCB and PSU plus a powerful 100 watt charging for mac itself.
Sensory devices and communications protocols like OSC, MIDI, DMX, etc.
@craigalfredson IMHO only Unifi gear is worth getting, and if you want go with open wrt over the top. The default Unifi firmware is also great though, many models with proper throughput. Consumer APs and routers are not worth the te.