The 990 specs list the height at 7.75 inches. The 770 specs list the height at 7.75" with feet. Tinkering a bit with ScottH's picture makes me think the 990's height may include the feet as well, as in the picture the two look to be almost exactly the same height (in fact, the 770 is about 20 or 25 pixels higher, which amounts to about 2.5% taller assuming there's no perspective issues throwing us off). Based on that, I'd say the 7.75" number should be pretty accurate.