💡 Mackertop 240W Desktop Power Supply Unit PSU Replacement for Dell OptiPlex SFF Systems - H240AS-00 AC240AS-00 L240AS-00 AC240ES-00 H240ES-00 Series+ Review

Success. I was able to replace my year old power supply with this one and no longer had problems turning on my computer or errors being signaled by the tower. Very satisfied with the product. As long as it lasts The complex installation took about an hour, should have taken a maximum of 10 minutes. But I blame the tower configuration for that.

Another manufacturer's power supply worked properly. The PC booted into Windows 10 with no problems. Easier to install than the OEM Dell 3wn11 power supply. I recommend this third party power supply over the Dell 3wn11 OEM power supply. Thanks for a great product. 2 OEM Dell 3wn11 power supplies failed. One after 2 years and the second arrived DOA.

So far so good Replace dead P/S on one of my Dell Optiplex 390 SFF machines. I liked it so much I bought another one for my other 390. Good salesman.

In late 2015 I bought a used Dell Optiplex 990 from a recycler at a good price. I actually like these little Dells, aside from the custom fan headers and PSU form factors, but thanks to affordable replacement parts like this Mackertop PSU, this little 990 is still running three years after its redesign because it was too old to use. What else? have something to say? It works. It will probably last as long as the car, in this case it was a steal for the price.

I got two used ones at a lower price , which didn't work even though they were supposedly tested to be good. I was sure it was the power adapter so I finally gave in and got this one. Bingo, my computer was up and running again in 5 minutes.