HDD Capacity Calculator

A Hard Drive Capacity Guide helps you choose CCTV HDD to DVR & NVR and record many crucial evidences. Determine how much storage your Zxtech system needs. Easy way to find NVR's HDD Storage. Desired record time may vary. CCTV Hard Disk Calculator gives you estimated value depends on the recorder and camera settings.

Find the Right HDD Size






Use the Quick Formula to see the HDD size.

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