Acer ConceptD 300 - 3.5-inch Hard Drive Installation

UPGRADING YOUR COMPUTER -
7
Hard drives
The computer supports installation of two 3.5-inch SATA hard
drives in the internal HDD cage.
Removing the 3.5-inch hard drives
1. Perform the Pre-installation instructions on page 2.
2. Disconnect the power and data cables from the hard
drive.
3. Remove the hard drive from the chassis.