Eudoksjusz Szalony

Hi! In your case - convert GamingPC into unRAID server, for testing purpose, You need just 1x USB drive and 1x HDD/SSD for Array. More complicated step is running Thunderbolt cable from basement. Why Thunderbolt? You need high-bandwith video transfer for your 1440p(at 144Hz it uses ~16Gbit/s), and it also will provide USB 3.x for your peripherals(mouse, keyboard, audio, usb storage). Unfortunately, it will cost (LinusTechTips has it working, so You should check them out). It requires special Thunderbolt 3 cables that will be around 10-20meters and a Thunderbolt3 docking station with external power supply. Why everything must be special? Normal USB-C cables will die after 0.5 meter, active Thunderbolt3 after 2-3 meters and optical works up to 60 meters, but they do not transmit power. Linus has or had optic cables with some "crazy" docking station. Better way would be finding hiding-place closer to your desk, to be able to use cheaper cables and docking stations. As it was mentioned, there is a Parsec App - low latency remote connection. CraftComputing on YT has a few vids, from when he was building CloudGamingServer, showing how it works and how to configure it. Of course, in this case You would need low-power PC in your office, as You mentioned. It has some limits, like max 60FPS and a recommendation to not use Freesync and G-Sync.