coolerguys100-240v AC to 12 & 5v DC 4pin Molex 2A Power Adapter (2A, Without On/Off Switch)

So, SO happy I found this; even happier that it works like an absolute DREAM! I have an old IDE Maxtor HDD from 2001 that I have been trying just about every method I could find to somehow access the data on it. After a bunch of failed attempts with different methods and devices, I finally figured out that the drive simply wasn’t getting enough power. This drive needs precisely the output that this brick/cord provides. I attached this to the drive and it immediately spun up with not one single issue. Another bonus: the cords are both nice and long. This cord thoroughly made my year!!

Works exactly as advertised. I'm using this as the power source for an external radiator build. Powers 4 200mm fans, a dc pump, and two temp/flow sensors utilizing an aqua computer quadro with no issues . The freedom this has provided to run all of my watercooling accessories externally is amazing

Great product, only 2A molex supply I could find anywhere.

Pros:+ Convenience , reuse spare Computer Fans for out-of-pc applications+ Great Fan Tester to check noise levels at 12v and 5v (for 5v, use a 5v molex adapter or Red/Black lines). Also handy to check if the bearings are going bad or need to be lubricatedCons:- This power adapter doesn't maintain good voltage control over load.Under 12v @ 1A power load, this was reading about 10.9v for me on the +12v rail. That is well out of the +/- 5% comfort zone that I am comfortable with. I would recommend to NOT use this to power up Hard Drives or anything that has a higher power draw.... especially if you have important stuff on it!Conclusion: Only good for fans and testing. Do not expect to get full 12v out of it under load. For silent applications, this is mostly fine as most fans will be undervolted for lower speeds.... Just use a manual fan controller for full control

The item does not provide stable power. The other reviewers were correct. It ran fine for a few days and then recently it began having issues. I didn't bother running a multimeter on it. I'm just glad it didn't fry anything.

I prefer to use this to start my watercooling system, its much better than using the paperclip method or motherboard clip option, IMO. Worked like a charm to leak test, and to run the system with no electronics on. just make sure your pump is the 4 pin molex, some newer D5 pumps use sata or other such options.

This product is a lifesaver honestly.I wanted to keep my reciever cool, and I have tons of used computer 120mm fans laying around, but with no way to give them power since they use molex connectors.Enter this product and bam, problem solved. You just plug it into your wall outlet and you're able to run any molex powered device off of it.Depending on your fans voltage rating, you can get quite a few fans running off this thing. I was personally was able to chain 4 with no issues, and now my reciever is nice and cool when it's running.This product is definately a nice quality, but I will admit the price seems a little steep to me. I feel like it could be a little cheaper. But I looked around the internet and this price was pretty consistent with competitor pricing that I could find, so I decided to order based on Coolerguys reputation being my deciding factor( I've dealt with them pretty often because I build computers and never had a problem with them). If I could have found a different molex power adapter for a significantly cheaper price, I probably would have went with that though.This product would also be good if you wanted to run some molex powered LED cathodes or lights to light up your computer desk a little. I'm thinking about ordering another one for that use.

I purchased three of these to replace similar power supplies that shipped with "SATA/PATA to USB" adapters.The power supplies are nearly identical in appearance to the original units they were replacing, but the original units would overheat (with no load), melting the plastic case to the point there were holes in it, and eventually shooting fire out of the hole when the unit finally failed. the original units were rated for a higher current level as well, but were clearly the cheapest possible.Other people here remark that they are having problems getting these units to hold their rated voltage under the load of a bunch of fans. I haven't done anything to test this units performance under maximum load, but when powering a single large hard drive, the 5v rail was right on the nose at 5.00v, and the 12v rail was at 12.28v. So with a nominal load of a drive rated at .5A@12v and .75A@5v, the unit performed flawlessly. And the unit runs fairly cool undder that load after nearly a week of continuous operation.From a design perspective, I don't like to load any power supply past the 50% point anyway, as transient loads will tend to be several times higher than working loads(such as when you turn something on) so those of you loading this unit past 1A are probably overloading the unit.Keep in mind that many of the cheap fans can pull more power than they are supposed to, as specifications may be a lie to get more units sold.I did hook this up to a bank of 6 6" fans, and the measured voltage was the same 12.28v, but these were whisper quiet type fans, so their combined current draw is even lower than the HD I tested with.