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Toshiba S300 Surveillance Hard Drive — a 4TB 3.5-inch SATA III HDD purpose-built for 24/7 surveillance recording with a 180TB/year workload rating and rotational vibration compensation. The S300 (HDKPB08Z0A02S) is optimised for the continuous-write workloads typical of CCTV and NVR systems. Most desktop drives carry far lower annual workload ratings and can fail prematurely under surveillance duty cycles. RV (Rotational Vibration) sensors maintain stable operation in multi-drive enclosures where vibration from neighbouring drives can degrade performance. The 128MB cache and ~157MB/s sustained transfer rate support smooth simultaneous recording from multiple camera streams. Backed by a 3-year warranty. Key features 180TB/year workload rating — designed for continuous surveillance recording Rotational Vibration (RV) sensors for stable multi-drive operation 4TB capacity for extended video retention 128MB cache for smooth multi-stream recording SATA III (6Gbit/s) interface Up to 1,000,000 hours MTTF 3-year warranty Specifications Product Code: HDKPB08Z0A02S Capacity: 4TB Form Factor: 3.5-inch Interface: SATA III (6Gbit/s) Rotational Speed: 5,400 RPM Cache: 128MB Sustained Transfer Rate: ~157MB/s Average Latency: 5.56ms Workload Rating: Up to 180TB/year MTTF: Up to 1,000,000 hours Unrecoverable Error Rate: 1 per 10¹⁴ bits read Warranty: 3 years Need help choosing? Contact us at +27 32 586 3694 or support@audicoonline.co.za.