How much storage do I need for CCTV?

Storage depends on the number of cameras, resolution, frame rate, compression (H.264/H.265), and retention period. A single 2MP camera at 15fps with H.265 uses roughly 7-10GB per day. Use our calculator for precise estimates.

H.264 vs H.265 — which saves more storage?

H.265 (HEVC) reduces storage by approximately 50% compared to H.264 at the same quality level. Most modern IP cameras support H.265. If your NVR supports it, always use H.265 to cut storage costs in half.

How long should I keep CCTV recordings?

Typical retention is 30 days for most commercial applications. Some regulations require longer: banks often need 90 days, casinos 6-12 months. Check local laws — GDPR in Europe limits retention to what's necessary.