Yes...it can be used.rking5150 said:I would like to hook up an external fan to the back of my HR21. I am looking at a computer-type USB powered fan. Does anyone know if the HR21 USB port will power a fan? I would rather figure this out before I buy a fan.
I have a USB powered laptop cooling fan plugged in and working 24/7 on one of my 3 HD DVRs.