Computer hard drives are available 10 Tera (Price 1650) 4 Tera Price 600 2 Tera Price 400 1 Tera Price 300 Category: Surveillance HDD (Surveillance Cameras) * Size: 3.5 inches * Connection Interface: SATA III at 6 Gb/s * Capacities: From 1TB to 24TB (depending on the version) * Rotation Speed: Around 5400 or 5700 RPM for small and medium capacities, and 7200 RPM for some large capacities. * Cache Memory: From 64MB up to 512MB depending on capacity. * Recording Technology: CMR in most modern versions. * Operation: Designed to work 24 hours a day, 7 days a week. * Supports: Up to 64 HD cameras (depending on the model). * AllFrame Technology: Reduces video tearing and improves continuous recording.