Standalone DVRs (Digital Video Recorders) are self-contained video recording systems widely used in CCTV surveillance setups. Unlike PC-based systems, standalone DVRs operate independently with dedicated hardware and software, ensuring reliability and ease of use. They are designed to record, store, and manage video footage from multiple analog CCTV cameras, typically supporting various channel options. Most models feature H.264/H.265 video compression for efficient storage, HDMI/VGA output for direct display connection, and user-friendly interfaces for playback and configuration. Advanced standalone DVRs may include remote access via mobile apps or web browsers, motion detection recording, USB backup, and alarm integration. Their plug-and-play design, stability, and cost-effectiveness make them a popular choice for small to medium-scale security applications.