Replacement for power supply

[kgvd101]

Hello, I have a hp pavilion slimline s5-1010 desktop and I wanted to replace my power supply with one that has higher watts. Currently the max for it is 220w, and I need at least 350w. I can't find a powersupply that is the same dimensions as the one I have, 200mm x 85mm x 53mm (7.9 x 3.3 x 2.1 inches)

 

[n0ns3ns3]

you can get a normal sized PSU and leave it outside the case. the cables are long enough to reach the components
Those computers come with proprietary PSUs, there are no standard models to upgrade them.

 

[kgvd101]

you can get a normal sized PSU and leave it outside the case. the cables are long enough to reach the components
Those computers come with proprietary PSUs, there are no standard models to upgrade them.

Would any psu work? Is there any that you would recommend