The Evercool Nighthawk ACC-HD-F117 is a cooling device for your heaty hard disk, reduces hard disk drive temperature and extends your hard disk drive life and reliability. The ACC-HD-F117 features dual blower fan and aluminum block to dispense large volume of heat more effectively from both sides. It can use for 3.5′ HDD with high compatibility. The Evercool Nighthawk ACC-HD-F117 hard disk cooler is available for $8.73.