How to determine Your hard drive interface

1. Turn off your computer and unplug it from all electrical outlets. 2. Remove the computer’s cover. 3. Look for your hard drive which is one of the few devices that have data cables. 4. If the hard drive has a flat ribbon cable connected to it, you are probably using an IDE or EIDE interface. 5. If the hard drive has a different type of data cable connected to it (like a round one), you are probably using a Serial ATA interface.

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