“After using NASes from several different brands, our favorite NAS management system has become Synology's DSM. The system is reliable and robust. For all intents and purposes, the RC18015xs+ is a near perfect system.”
This is the ultimate nerd gift: practically unlimited storage. The Synology DS416 NAS can house up to 32TB of hard drives over four 3.5-inch slots. The 416 is anything you want it to be: a personal cloud where you can securely share files, a video streaming host, a place to host your personal website, a mail server. Or, just back up all your files and make them accessible anywhere.
The ideal scenario for the DS2415+ is that of volume, lots of it. While the DS2415+ supports features that consumers may find useful or entertaining, it performs best as a gargantuan storage repository. At this point in time, it supports 8TB drives, giving a total raw capacity of 192GB if you add in the DX1215. If you're running a substantial image/video heavy operation, you'll find the combo highly attractive.