Power supply dimensions

[rhawr]

i want to find a power supply with at least 400watts and has the dimensions of 6.75 x 3.25 x 2.5 inches.

 

[Rugger]

That is a TFX form factor PSU. Dell PC? What is the model of the PSU that you are replacing? Do you have a picture of the PSU? Some of the pre-built PC PSUs have odd shapes to fit inside their cases. Here is one PSU that meets your requirements: http://www.newegg.com/Product/Product.aspx?Item=N82E16817338082

Edit: It's not an exact match but is close....if it won't fit, then you may have to go thru the PC mfr to get a replacement.