I can tell you from bad experience that the
Athena Power AP-AT30 300W
are junk. Very hit and miss, i had 7 of them new.. 2 didnt work out of the box, one had solder rolling around inside and low voltages,3 died within a month,and the last one delevloped a dead short.. absolute junk unfortunately.
i suspect the 230W one is made by the same bunch,but i couldnt track the maker down to prove it.
Uh oh, I think the spare I have in inventory is one of these. Looks like I should junk it!