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How can i convert an internal HDD to external (USB?)

I just bought by mistake a HDD that is internal:
MAXTOR 300GB 7200RPM, Buffer size 16MB...
The point is that i can't use it (to my level of knowledge), because i have a laptop, ACER Aspire 5670.

Is there anything i can do to connect it to my laptop as an external HDD?
Some kind of adapter i can use or cable that can help in this direction?

Thank you very much


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not a mistake in my book

In reply to: How can i convert an internal HDD to external (USB?)

That is how I make all my external hard drives. I find a large capacity internal HD at a good price and install it in a proper external enclosure.

Make sure the external enclosure has a USB 2.0 external connector if using Windows.

If the Maxtor drive is PATA (ATA/100, ATA/133, Ultra ATA, IDE), then you need an enclosure that has an IDE internal interface. If the drive is SATA, then you need an enclosure with an SATA internal interface.

Note that online prices for external enclosures at places like and are usually much less expensive than your local stores.

What is the model number of your Maxtor hard drive?

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And make sure that enclosure. . .

In reply to: not a mistake in my book

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Maxtor 300GB 7200RPM

In reply to: not a mistake in my book

Thanks for replying
It is an Ultra ATA/133
Would you suggest a specific case to search for in ebay?
Thank you very much

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purchasing a hard drive enclosure

In reply to: Maxtor 300GB 7200RPM

For your 3.5" form factor hard drive, you need an external enclosure with the following:

- 3.5" size (form factor); or a 5.25" enclosure that can accommodate a 3.5" hard drive
- internal IDE interface (SATA may also be present)
- external USB 2.0 interface (firewire, SATA, and/or ethernet may also be present)
- can accommodate at least 300GB (or whatever your HD size is)

Other considerations:
- metal case may help to dissipate heat better than plastic
- model with a fan is recommended but optional
- 5.25" models are more likely to have a fan(s)
- read product specifications for system requirements and other details
- read customer reviews to learn if fan is noisy and other quirks
- note that the cause of many bad customer reviews is a Windows problem and not the enclosure model.

Some models:
3.5" external enclosures with IDE internal and USB2.0 external
5.25" external enclosures with IDE internal and USB2.0 external

Coryphaeus gave you a recommendation for a 5.25" model with a fan. I have used these 3.5" models without issue for over a year. Also, I have been pleased with various Adaptec models over the years.

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