Standalone DVRs (Digital Video Recorders) are self-contained video recording systems used in CCTV surveillance setups to capture and store footage from analog security cameras. Unlike PC-based systems, they operate independently with built-in hardware and software, offering reliability and ease of use. Features often include multiple camera channel support, real-time recording, remote viewing, motion detection, and storage management. Standalone DVRs are widely used in homes, offices, and commercial facilities for cost-effective, continuous video monitoring and security management.