Is it known for "fake" AIM-TTi PSUs to be on the market? In particular, I bought a PSU off ebay which claimed to be EX355P, but the received item is clearly not a 35V/5A PSU. It is 20V/2A. It looks like someone has taken the box from a EX355P and put the board for a EL302 in it. Perhaps there was a legit reason, eg two faulty units combined to one working unit. The seals are broken and there is a screw missing, clearly someone has had the box open.
However, the EL303P is clearly inferior spec to an EX355P, and putting it in the wrong box significantly enhances the value for the seller.