Found a couple of articles about the Patriot Box Office.gizmodo.com comparisonhardwaresecrets.com review
The gizmodo.com article is a "shoot out" comparison of the Patriot, WD, Seagate, Netgear and Popcorn Hour devices. Here's what it says about the Patriot.
This was the dark horse of the group, being a late entry by a company known only for computer memory. I was surprised at how well it held up. It actually could decode more tested formats than any other device in this lineupit did Flash video (FLV), which the three above can't render. Only the WD and the Patriot show you video previews, too. As small as it is, there's a space for a 2.5" SATA drive in there, and even a BitT0rrent client. You can copy files to and from different drives and the network, and it's the cheapest of the lot, at $130.
So why did it come in a distant 3rd? Unlike the three above, it can't read Mac formatted hard drives, and its video quality was noticeably the worst of the batch. That said, if you are a hacker sort and want something to play with that doesn't cost as much as Popcorn, set your sights on this.
Here's the conclusions of the hardwaresecrets review, though the full article is worth a look; it contains some good photos.
The Patriot can pull your digital media from a variety of devices including a USB drive, a network device and the internal drive. It is truly a multi-functional device with good support for a large variety of multi-media formats. Although the plain interface won't knock your socks off, it is functional and easy to use. The fact that you can add your own hard drive is a great feature.
* Good variety of video & audio formats supported
* 2.5 drive can be added
* HDMI cable included
* Easy to navigate
* Easy to setup
* Small and unobtrusive
* Good performance
* Wireless adapter is proprietary and optional
* Slight hum