A surveillance hard disk drive (HDD) is a storage device designed to record security footage 24/7. They are built to be durable and reliable, and can handle heavy writing workloads. Here are some features of surveillance HDDs:

• Optimized for surveillance systems: Surveillance HDDs are designed to be integrated into surveillance systems and perform consistently.
• High write speeds: They are optimized for high write speeds and can handle multiple video streams simultaneously.
• Error correction: They offer enhanced error correction to prevent data loss.
• Vibration resistance: They are resistant to vibrations to prevent data loss.
• Enterprise-grade features: They may come with built-in encryption and self-healing technology.
• Larger magnets: They have larger magnets to allow for faster write accelerations.
• Robust damper plates: They have more robust damper plates to support the write heads.