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The drive we are selling is a SATA drive. If you are not sure what type of hard drive interface (IDE/PATA or SATA) your laptop is compatible with please contact us, consult your user manual or look up the information on your laptop manufacturer's website. Your laptop with take either one and they are not interchangable.
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Dell Inspiron 14R-7420 500GB Hard Drive
Toshiba brand 500GB, 7.0mm, 5400rpm SATA (Serial ATA), 3.0Gb/s, 8mb cache laptop mobile hard drive, factory sealed