Question 1

Is this hard drive SATA or IDE?

Accepted Answer

Very sorry but my laptop battery caught on fire, borrowed a mates pc to figure out how to make an external drive and whilst her kids were running up and making a ton of noise (bless their lil cotton socks) I couldn't think. As soon as I clicked send, I saw the answer in the specs.

Thanks all!

Question 2

Is this drive compatible with a 2013 XBOX360 E? If at all, would I be able to experience max performance with the stock Xbox software?

Accepted Answer

I dot know the answer to that question. Why not contact Seagate and get a definitive answer? They designed and manufactured the drive.

Question 3

fits the same as non thin?

Accepted Answer

This drive will replace a standard Laptop drive at 2.5 Inches.
It is a standard thickness.

If you are looking for one thinner, this will not fit as it would then be too thick.
This drive will NOT fit in most THIN model laptops.

I have now used this drive in several Laptops, from Gaming, to work specific systems without issue regarding fit or operation

Question 4

What is NCU?

Accepted Answer

I assume you mean NCQ, or Native Command Queuing. It's basically a technology which helps the computer queue commands to the drive in a manner better suited to the specific hardware involved. It may theoretically improve speeds when dealing with distant parts of the hard drive, especially if it's highly fragmented. Check Wikipedia for more details.

Question 5

What is the suggested replacement for the ST95005620AS Hard drive?

Accepted Answer

It depends on what you want. Any 2.5" SATA II or SATA III should be compatible. It just depends on how much space you want, if you want 5400rpm, 7200 rpm or self encrypting drives. 
Just look at the specs of this drive and compare it with other ones so you can see the difference.

Question 6

will it fit Acer Aspire One notebook?

Accepted Answer

Well, I was asked to answer your question since I bought one of these for my MacBook.  I can tell you it has improved my speed and there is virtually no noise. This is the 3rd hard drive I've had in my MacBook since buying it new in 2008. 
If I had an Acer I would start at the Acer website to check if it would fit. My Mac "guy" found this for me.  I am pleased with it though.
I'm sorry I couldn't be of more help.

Question 7

lenovo thinkpad t400 compatible?

Accepted Answer

Yes, any SATA 1/2/3 Drive is compatible with the Lenovo Thinkpad t400

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