On Wednesday, September 2, 2015 at 8:42:40 PM UTC-5, David Farber wrote:
I bought this item last year. www.ebay.com/itm/331250999094 I didn't have an
occasion to use the power adapter until last month when I had a SATA
notebook drive to check. (When I bought it, I was mainly interested in the
PATA adapter which does not require the separate power supply as the power
is derived through the USB port.)

I had everything wired to go when I plugged in the AC cord into the adapter.
Kaboom and poof. I saw a nice spark from the AC terminals as it first made
contact with the adapter. I remembered when I purchased it and did some
research into the feed back of the seller and found a few similar comments

I have one exactly like that and of course I tested it when it arrived. It's been working fine for several years running external hard drives for backing up files. Before using the new one I would connect a 12V bulb to the output as a load and see what happens when you apply power. Chinese quality control is almost non-existant, but when you get a good one, it seems to last. What do you expect for less than 10 bucks?