Introduction
Your NVR’s hard drive is where all footage lives. The traditional choice is a mechanical HDD (Hard Disk Drive), but SSDs (Solid State Drives) are increasingly available. Each has trade-offs in speed, durability, cost, and capacity that matter for surveillance workloads.
HDD for Surveillance
Surveillance-grade HDDs like the WD Purple and Seagate SkyHawk are designed for 24/7 write-intensive operation. They offer large capacities (up to 18 TB per drive) at a low cost per gigabyte, making them the standard for most CCTV systems. They include firmware features for handling multiple simultaneous video streams.
SSD for Surveillance
SSDs have no moving parts, which makes them shock-resistant and silent. They read and write data faster, enabling quicker playback searches. However, per-gigabyte costs are significantly higher, and maximum capacities are smaller compared to HDDs of the same price.
Comparison
| Feature | HDD | SSD |
|---|---|---|
| Cost per TB | Low | 3–5× higher |
| Max Capacity | Up to 18 TB | Up to 8 TB (common) |
| Durability | Sensitive to vibration | Shock-resistant |
| Noise | Slight hum | Silent |
| Speed | Adequate for recording | Faster search/playback |
Which Should You Choose?
For the vast majority of CCTV projects, surveillance-rated HDDs are the best value. SSDs make sense in mobile or vibration-prone environments (vehicles, industrial equipment) or when ultra-fast forensic search is a priority.
FastEgy Recommendation
We supply and install WD Purple HDDs with every NVR package—optimised for continuous recording. If your project demands SSD performance, we can configure a hybrid setup. Contact FastEgy for storage sizing assistance.
About FastEgy
FastEgy is a leading distributor of Hikvision, EZVIZ, and professional security solutions across Egypt. Visit fastegy.net or call us for expert consultation on your next surveillance project.