1. Installing Internal Optional DevicesExpress5800/R120d-2E User’s Guide 85Chapter 2 Preparations1.14 Additional HDD CageThe server of 16x 2.5-inch hard disk drive model can have additional HDD cage for installing additional harddisk drives.1.14.1 InstallationFollow steps below to install an additional HDD cage.1. Refer to steps 1 to 6 in Chapter 2 (1.3 Overview of Installation and Removal) for preparations.2. Remove the six screws from protective cover, and remove the protective cover.3. Remove the blank cover of 2.5-inch HDD cage bay by pulling it toward you.4. Install the additional HDD cage.