The StorCenter ix4-300d is a compact NAS devices with room for four disks, two network ports, two rear USB 2.0 ports, one frontal USB 3.0 port, and a display on the front. These are features traditionally reserved for more expensive high-end devices, and makes it a pretty complete storage device.
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