Digital Video Recorder User Manual102 Hardware InstallationNotice: Check the unit and the accessories after getting the DVR.Please disconnect the power before being connected to other devices. Don't hot plug in/out2.1 Install Hard Drive &DVD Writer2.1.1 Install Hard DriveNotice: 1. this series support two SATA hard drives. Please use the hard drive the manufacturers recommend specially for security and safefield.2. Please calculate HDD capacity according to the recording setting. Please refer to “Appendix B Calculate Recording Capacity”.Step1: Unscrew and Open the top coverStep2: Connect the power and data cables. Place the HDD onto the bottom case as below.Fig 2.1 Connect HDDStep3: Screw the HDD as below.Note: For the convenience to install, please connect the power and data cables firstly, and then screw to fix.