My ATT Uverse uses about 30 watts. I personally don't believe that a set top box could use 500 watts (thats more than 4A draw - probably more than most 2U rack

My ATT Uverse uses about 30 watts. I personally don't believe that a set top box could use 500 watts (thats more than 4A draw - probably more than most 2U rack servers loaded with CPU's and Hard Drives).