I forgot I had a Prof7500 and dug it up. I can not find the power adapter. It calls for 7.5 volts at 3.5 amps. Don't know that I need that amperage as I won't be moving a dish with it. I hooked it up to a pyramid power supply and the tuner works great. Just what I need for my Pi400 running arch linux. Only TBS card I have that will work with Arch is my 5520SE and it is iffy. The 7500 works fantastic but the power supply is a little overkill, a tuner the size of a pack of cigs, but a power supply about like a ASC1! Anybody have one or can point me to a place to buy one? I have came up empty with searches so far. TIA, Comptech.