Hi yunie,
I believe all the outlets on the 3500p are identical. That is due to the star wiring with nothing in series.
For me, I would consider keeping the computer, or any wall wart type switching transformer, off of that entire circuit (not just off of the 3500p or the outlet it is plugged into, but the entire circuit.
Even if you have to run an extension cord to a separate power center or strip, I believe it keeps the computer 'noise' out of your audio circuit(s).
I love my 3500p, not just for its sonic cleaness, but for the protection it provides.