I have the QNAP TS-251D with the 1-gigabyte ethernet port. My PC has a 2.5 GbE port. I want to utilise 2 GbE between them. Can I just fit a "Plugable 2.5G USB C and USB to Ethernet Adapter," in to the USB port of the NAS and then connect the pc and the NAS through a QNAP QSW-1105-5T switch?
Absolutely, you're on the right track! You can enhance the connectivity between your QNAP TS-251D with its 1-gigabyte ethernet port and your PC's 2.5 GbE port by using a "Plugable 2.5G USB C and USB to Ethernet Adapter." This adapter will help bridge the speed gap. For the network setup, you can connect the PC and NAS through a QNAP QSW-1105-5T switch. This switch supports 2.5, 5, and 10 GbE, so it's a suitable choice. The setup is flexible, allowing you to achieve a faster connection for improved data transfer between your devices.