iMBAPrice 5V DC Wall Power Adapter
Output: 450W., Input: 2.1/5.5Mm Plug, 5V Dc Wall Power Adapter Ul Listed Power Supply, Ul Listed Power Supply, 5V 500Ma
Results of our analysis:
We analyzed 40,402 reviews for 104 products in the AC Adapters category.
We then analyzed 40 reviews for this product. Of these, 10 reviews were recent.
100% of reviews were positive.
Final Score:

8.00 out of 10, based on these factors:
Common Questions
Can you confirm the direction of the output plug?
It is in the center.
I don't know how to find out if the right size is for my Polaroid speaker.
Before you buy, you need to know what size you need. You can look up your speaker on line to find out.
Is this the correct accessory for my cd player?
The output is 5volts which is slightly higher than the 4.5volts specified on your CD player.
Will it work with the sabrent 4 port usb 2.0 and the sabrent 4 port usb 3.0 hubs?
I think this is designed for the hdmi video amplifier/extender only, that's why I love to be of help.
Can this be used with a Drinkwell pet fountain? The original says input 120v 60hz 9w, output 12vac 200mA.
I'm not an electrical engineer, but I'm pretty sure you'll need to match the original specifications or the product won't work right.