2-22AcerAltos 21000 System Guide5. Secure the drive with two screws as shown below.6. Connect the power cable and signal cables to the external device.7. Close the left panel.To remove a 5.25-inch storage device:1. Open the front panel door and remove the left panel. See section2.2 for more information on opening the housing panels.2. Disconnect the power and signal cables.3. Detached the external device by removing the screws and gentlypulling out the device.4. Remove four screws to detach the drive from the drive guide.