5900RPM, that's fine for specific sequential and multi-sequential tasks but not for heavy duty work. I'm sure a regular Seagate green drive would work fine in a set top box.
A real hard drive is 7200RPM and if you want a supercharger, get a hybrid 7200RPM model with write caching. I hope they proliferate the desktop market so we can have 4TB+ 7200RPM hybrid desktop drives and I hope that Seagate continues making 7200RPM hybrid laptop drives, even though right now they're just making 5400RPM hybrid laptop drives (can be slow if data isn't cached, I'll never buy one).
Let me guess, this is a 5x800GB platter drive?
The 1 thing I'll give them is that it is rated for up to 70 Celsius operating temperature. Typically drives are rated at 60C. Also operating shock at 80g is a bit higher than average I think.
Their specifications page has bad data though;http://www.seagate.com/internal-hard-drives/consumer-electronics/video-3-5-hdd/?cmpid=friendly-_-video-hdd-us
Says only 3 watts idle power consumption even on the 4TB model, but the datasheet
http://www.seagate.com/files/www-content/product-content/pipeline-fam/pipeline-hd/video-3-5-hdd/en-us/docs/video-3.5-hdd-ds1783-1-1302us.pdf
says 5 watts, which is far more realistic.
Also on the datasheet, a drive ready time of 15 seconds? Really? At 24watts of 12V power consumption it won't take long to spin up.
Some of the lower capacities says <17, or 6, or 12 seconds. Sounds like firmware bloat/excessive self testing before coming online if accurate, though I doubt those numbers are accurate at all.