Power supply for Maxtor OneTouch Plus 4 External HDD

I have mixed up the power supply units that I have, and am not sure which is the correct one for my Maxtor OneTouch 4 PLUS 500GB external HDD that I purchased recently.

Can anyone please help with informnation on the make and spec of the AC power supply unit that I was supplied with?

The one I have that is most likely to suit, I think, is made by APD model WA-24C12N, about the size of a mobile phone charger, and is rated 12 Volts, 2A DC output.

I would appreciate your help on this. The details are not available on the Maxtor web site. In the meantime, I am unable to use my HDD

kind regards,

Jill

This is kind of an old message, but I had the same problem of a lost PS. I figured out the power specs (since they are NOT written on the drive case for some oddball reason ) and figured I'd post them for others!

You can always either find an old PS laying around, or you can just hit radio shack or something and get a new one, they're pretty cheap.

The power supply specs for the Maxtor One Touch 4 (and indeed most external USB hard drives) are:

12V DC output
positive tip
18 Watts or greater

A power supply can be found at LCDPAYLESS thru Ebay. Everyone else is out of stock. breaux2@comcast.net

Although jruddock did give you some great advice and specifications, one of the most important parts is the amperage that your hard drive will draw while under full load. So to answer your question, the adapter may or may not be different between your 2 hard drives. It depends not only on the hard drive size, but also the interface (USB/eSATA/Firewire) of the hard drive. The typical 500GB Maxtor® OneTouch III with USB will use a 12V DC/2.5A power supply with a center tip positive barrel connector. Your 1TB unit may draw more amps than that, and need a larger power supply.

P.S. For those who said check RadioShack, good luck! Most of their A/C adapters do not exceed 1.5amps. You might have better luck with someone like www.12Vadapters.com , I know I did.

Hi,

I don't have a reply for you but, am in the same boat. I moved to WA. from Hawaii an can't find my cords either. Did you manage to get one? if so, can you direct me to where I can buy one.

Mahalo,
Jeff G

You might have better luck with someone like www.12Vadapters.com , I know I did. My PS cord went out last night and this site has all the adapters that you will need. You will definitely find what your looking for here.

My only reply is, grumble, grumble .... This is a common problem that results from LACK OF GOVERNMENT REGULATION.
I've encountered this problem with many electronic devices for the last twenty years and I've destroyed at least one device when I didn't realize that not only is the voltage important but also the amp rating!
Often the voltage and amp requirements are not even ON THE DEVICE ITSELF and you have to search the internet or rummage around in your file cabinet for the manual.
This information should be placed on both the adapter and the electronic device on pain of the death penalty. (Well, maybe twenty years in prison would be sufficient.)
Grumble, grumble....