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The TOSHIBA HC422B-N-300 is a high-capacity enterprise-class hard disk drive (HDD) engineered for 24/7 mission-critical storage applications, including industrial automation data logging, surveillance systems, and cloud infrastructure. Part of Toshiba’s MG Series, this 3.5-inch HDD delivers 20TB capacity using innovative 10-disk helium-sealed design and conventional magnetic recording (CMR) technology. Optimized for NAS and RAID environments, the HC422B-N-300 features a 7,200 RPM spindle speed, 512MB cache buffer, and robust vibration tolerance, ensuring reliable performance in multi-drive industrial chassis. With a 300TB/year workload rating and support for advanced error recovery controls, this drive maintains data integrity in harsh environments where temperature fluctuations and mechanical stress compromise consumer-grade storage.
Designed for compatibility with industrial servers and embedded systems, the TOSHIBA HC422B-N-300 leverages Toshiba’s Stable Platter Technology™ to minimize off-track errors during shock events, making it ideal for factory automation historians or edge-computing nodes. Its dual-stage actuator and rotational vibration (RV) sensors counteract resonance in densely packed storage arrays, while helium filling reduces power consumption by 18% versus air-filled drives. For engineers deploying SCADA data repositories or video analytics platforms, the HC422B-N-300 provides enterprise-grade endurance without requiring specialized cooling infrastructure.
TOSHIBA HC422B-N-300
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | TOSHIBA HC422B-N-300 |
| Manufacturer | Toshiba Electronic Devices & Storage Corporation |
| Product Type | Enterprise HDD (3.5-inch) |
| Formatted Capacity | 20TB (20,000 GB) |
| Interface | SATA 6Gb/s |
| Spindle Speed | 7,200 RPM |
| Cache Buffer | 512MB |
| Workload Rating | 300 TB/year |
| Max Sustained Transfer Rate | 268 MB/s |
| MTBF | 2,000,000 hours |
| Power Consumption (Idle/Oper.) | 5.5W / 8.9W |
| Shock Resistance (Oper./Non-oper.) | 70G / 300G |
| Acoustics (Idle/Seek) | 29 dB / 34 dB |
| Helium Sealing | Yes (HelioSeal™) |
| Warranty | 5 years |
Main Features and Advantages
Industrial-grade resilience: Helium-filled enclosure reduces aerodynamic drag and enables 10-platter design for 25% higher capacity density versus 8-platter competitors. The TOSHIBA HC422B-N-300 withstands 0.75G vibration during operation – critical for multi-drive industrial NAS.
RAID-optimized performance: Advanced error recovery controls (ERC/TLER) prevent drive dropout during rebuilds. Staggered spin-up reduces peak power load in 12-bay enclosures.
Data integrity assurance: Stable Platter Technology™ uses servo pattern optimization to maintain head positioning during 300G non-operational shocks. Sanitize Instant Erase (SIE) firmware supports secure data disposal.
Energy efficiency: Rotational Vibration Safeguard (RVS) technology minimizes performance degradation in high-vibration environments, reducing recalibration cycles by 40%.
Application Field
The TOSHIBA HC422B-N-300 excels in:
Industrial Automation: Stores high-resolution SCADA historian data in PLC/DCS networks (e.g., Rockwell FactoryTalk®)
Surveillance Systems: Handles 64-channel 4K video streams in NVRs with AI analytics (Milestone XProtect®)
Edge Computing: Local storage for machine vision defect databases in automotive manufacturing
Energy Sector: Drilling sensor data logging in offshore oil platforms with 55°C ambient
Transportation: Black box data recording in railway control systems (EN 50155 compliant)
TOSHIBA HC422B-N-300
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