The TS-453B is a feature-rich four-bay NAS that includes an OLED screen, 4K playback, HDMI port, and a PCIe expansion port for QNAP's QM2 expansion boards. Using various cards you can add up to two M.2 slots and 10 Gigabit networking to the NAS, in addition to the two 1000 Mb/s ports.
Slow computer got you down? Maybe a hardware upgrade should be in your cards, if so this guide to the Fundamentals of Upgrading a PC is an invaluable read. PCSTATS Tips