Thats a greenpower 5400 rpm drive that uses AV firmware. Directv does not use the greenpower AV series, they use the 7200 rpm WD AV drives. So far those only go up to 500MB. Only thing I can tell you to expect with the 2TB version is that since it may have more platters and heads, it may throw off a bit more heat, possibly a little more vibration, and maybe a little more noise than the 1tb model. The original greenpower used 4 250GB platters, a subsequent upgrade changed it to 3 x 333. This one has 4 x 500.