3.5" external HD 12V, how many amperes?

[nahuel-arg]

So here's the problem:

I have a Seagate Expansion 4TB Desktop External Hard Drive USB 3.0 (STBV4000100), everything was working fine, until my dad borrowed it and lost the power adapter, I have to buy a new one, found around the internet that it has to have an output of 12V dc, but I need to know how many amp? or if there is no problem buying something with more amps? will it break it?

Thanks

 

[Mr5oh]

You would rather a high amperage rating actually. The hard drive will only draw what it needs, but having an adapter with a higher rating will result in a cooler (temperature) adapter that will generally live longer.

 

[boosted1g]

Amperage is a max draw number so if the hard drive only needs 1.5A, it will only pull 1.5A whether the adapter is 1.5A or 3A.

Now with that said, if there is not good safeguards then the external drive could pull extra amps and damage the circuit board.

One Seagate's website the older model white adapter was 2.0 amps and the newer model black plug is 1.5 amps
http://knowledge.seagate.com/articles/en_US/FAQ/204171en?language=en_US

Be carefull with "replacement" no name power adapters, if possible I would try to find the proper Seagate one or at least get an adapter made by a decent company.

If it is the newer black model: http://www.amazon.com/Seagate-WA-18G12U-power-adapter-~120-240v/dp/B0064QP554/ref=sr_1_2?s=electronics&ie=UTF8&qid=1421941889&sr=1-2&keywords=12v+1.5+amp+power+supply