Connect your 2.5in laptop's IDE hard drive to a standard 40-pin IDE cable for installation in a desktop or tower PC. This adapter features 44-pin female to 40-pin male connectors, and a power feed. This adapter makes file transfer to/from your laptop to your desktop quick and easy. Just connect your laptop's 2.5in drive to this adapter, and connect the adapter to our USB 2.0 to IDE drive adapter (#30500). Then plug the USB to IDE adapter into an available USB port on your desktop. Your 2.5in drive will appear as a logical drive, and allow you to pull files directly back and forth.