Product manual It only applies to 3.5-inch hard drives, not 2.5-inch hard drives. Install the screw HP Compaq hard drive. A hard disk needs at least 4 screws to fix it on the chassis. Suitable for DC7800, DC7900, 8000, 8100, etc. Suitable for most desktop computer cases. Suitable for all 3.5 hard drives, providing good mute and damping effects. Package contains: 4PCS 3.5-inch hard drive fixing screws.

Package contains: 4PCS 3.5-inch hard drive fixing screws. Compatible with DC7800 DC7900 Elite 8000, 8100, 8200, 8300, Pro 6000, 6005, etc. Please ensure compatibility before selling. Only applicable to 3.5-inch hard drives, not applicable to 2.5-inch hard drives. Can make the hard disk shock absorption, mute. Hexagonal screws for HP 3.5-inch HP screws.