Slimline Power Supply Is The 300 Watts Power Supply The Highest Wattage On Hp Slimline?

Is the 300 watts power supply the highest wattage on hp slimline? - slimline power supply

Here is the link to the food I ordered:
http://cgi.ebay.com/NEW-300W-REPL-HP-Pavilion-Slimline-s3400-Power-Supply_W0QQitemZ120495280224QQcmdZViewItemQQptZPCA_UPS?hash=item1c0e141060

I have this on eBay and is the highest power of HP Slimline that I've found.