Summary: The connection to the back of my hard drive is sensitive and can get pulled out easily if the hard drive is moved without care, but I don't know if that's any fault of the power supply. Aside from that, it does the job perfectly. I'm using it with a Western Digital My Studio Book Hard drive. It's lasted for years and has no real issues. There may have been about 5 times total that the drive didn't turn on, but that was because the plug in the back wasn't all the way in.
This was a great replacement AC adapter for my WD external hard drive
tina Nguyen, Amazon
11 November 2014
Summary: This was a great replacement AC adapter for my WD external hard drive. I have lost the original AC adapter during a move from one state to another and instead of buying a new hard drive, I've just order another adapter to fix that problem. fits perfectly and works great.