Genuine 300W Bestec ATX0300D5WC Power Supply for ATX-300-12Z P/N 585008-001

Works, is very quiet, I had to look to confirm the fan was running.replaced the supply from a HP Pavilion 5 or 6 yrs old. It's the exact part as the original. The computer was almost never turned off and the fan bearing finally went out. Took about 10 to 15 mins to swap out and back in business. If it last like the original a new computer will come first.Paid a couple bucks more for the Prime / Amazon ordered Sunday, received on Tuesday.

This is an exact replacement for the HP computer I was repairing and it fit and worked flawlessly. I've had no complaints from the customer so I am assuming it continues to work.

This is NOT MY review OR rating, PC also had other hardware problems... SO I shall return soon to complete a true review... Just letting you know i can not rate til the repairs are complete...OK Now that the PC re-build is complete... I can say that this Power Supply is running fine so far and the cooling fan is keeping the air flow inside the case moving quite well even if it a little bit louder than the usual power which i do not mind so much knowing that the extra cooling may help to NOT allow the problem with the original power supply that came with the machine... That ended up being a slight melt down of the mother board & internal graphics.. Thank You Amazon & the service rep i spoke with to get this item shipped at the earliest possible time...

The device lasted five weeks before dying. This fine company will not refund me for the piece of worthless crap I was sold. Will not recommend them to anyone. Nor will I ever buy from them again. May they quickly go out of business and save others from losing money to these smucks.

After five years the old power supply's fan stopped, there was a bad smell and the computer power would not turn on. I ordered this supply, the model number is exactly the same as the old supply (including "Rev. B" as seen in the photo). In half an hour I took out the old supply and put in the new one. Worked perfectly and that is it.

My mothers computer stopped working, so I got it checked at A computer store for $40 to see what was wrong. I figured it was the power bank but wanted to make sure. once they told me it was the power bank I ordered the part, I installed it and it worked lovely. Saved $60 on installing it myself

The cooling fan was vibrating and I replaced it with new one. Other conditions is Ok

I ordered and installed this supply in January 2015 to replace the original power supply in my wife's HP Pavilion. This is the same model number of the stock power supply that lasted for many years before the fan bearings started to get very loud. Replacement was very easy. Only a few screws and connectors to unplug. Remember to unplug your computers power cord before you do anything! So far it's doing a fine job. If I can squeeze a couple more years of operation out of it I will consider it a win. by then she will need a new machine. If anything changes I will update this review. So far, I would recommend this power supply.