Assuming that the electronics runs off a 5V supply, then that's 5V @ 4A. Probably 3A, if the switched mode supply is only 75% efficient. Seems like an awful lot to me! What else does it do? Did you leave the "room heater" function enabled?Yes that ratio is surprising. Not sure I would say its on standby. When I think of standby, I'm thinking of input sensors waiting for the user to initiate some work eg. an IR detector. I would hope the standby current of my washing machine or dish washer (indicating complete cycle) would be almost nil as the circuitry is likely simple compared to a cable box. That being said, I'm going to run some numbers on my devices. There may be some tears to come