Can I use my internal hard drive as an external hard drive?

es, there are external hard drive cases you can buy that will allow you to convert your internal hard drive into an external one. After all, external hard drives are basically standard IDE or SATA drives packaged in an external case. The case protects the hard drive and connects the hard drive interface to the I/O ports. Some external hard drives only include USB 2.0 ports, while others may include USB, Firewire 400 and 800, and external SATA ports.