500GB hard drives for CCTV recorders

A 500GB 3.5" SATA hard drive is the entry-level storage option for DVR and NVR systems, suited to smaller setups where footage is reviewed and cleared down regularly.

This range holds four 500GB drives — from Seagate, Toshiba, Western Digital, and an unbranded option — all built for 24/7 continuous recording rather than standard desktop use.

How to choose

• Camera count and resolution — 500GB suits low camera counts or shorter retention windows; higher-resolution multi-camera setups will fill this capacity faster.
• Retention needs — offices and small retail premises with weekly footage review cycles are a good fit; sites needing 30-day+ retention should look at higher capacities.
• Recorder compatibility — check your DVR/NVR's supported drive interface (3.5" SATA) before ordering.
• Brand preference — Seagate, Toshiba and Western Digital are all represented if you standardise on a particular manufacturer for fleet consistency.

All drives in this range are designed for surveillance-grade continuous write cycles, which differ from consumer drives rated for occasional use.

Typical use cases

Small offices, single-entry retail units, and residential installations with limited camera counts are the best match for 500GB capacity.