More like a peripherals. Got a simple 2 bay NAS. WD MyCloud EX2 Ultra. Completed with 2 4TB Seagate Ironwolf. Set up in raid 1 which means the two HDD are mirrored. Thus only getting 4TB of extra storage despite having 8TB.

Connected with ethernet to my PC, set up something called ISCSI, which allows it to appear and act like an internal drive. Time to test its performance :D