Skipping the router to connect your NAS to your PC cuts your NAS off from the internet.
For three decades, industrial PCs have used two types of internal architecture, motherboards and passive backplanes: ATX motherboards with slots for ISA, PCI and PCIe I/O extensions connected ...
Some (many?) HDMI cables can also carry Ethernet over HDMI. The main use seems to be to provide internet connection to a smart TV from a cable modem box. Currently I have an ethernet-USB adaptor ...