Synology HAT5320-4T 4TB 7200 RPM 512MB SATA III Enterprise HDD (Boxed)
Synology HAT5320-4T 4TB enterprise-class 3.5" SATA HDD with 7200 RPM, 512MB cache, and 2M hour MTBF rating. Optimized for 24/7 NAS and surveillance systems with 550TB/year workload capacity.
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Discontinued
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| Storage (SSD & HDD) - Device Type | Internal HDD |
|---|---|
| Storage (SSD & HDD) - Capacity | 4TB |
| Storage (SSD & HDD) - RPM (HDD) | 7200 RPM |
| Storage (SSD & HDD) - Interface | SATA III |
| Storage (SSD & HDD) - Cache (HDD) | 512MB |
| Storage (SSD & HDD) - Form Factor | 3.5 inch |
The Synology HAT5320-4T is a 4TB enterprise-grade 3.5" SATA hard drive specifically engineered for demanding 24/7 NAS, surveillance, and server environments. Featuring a 7200 RPM spindle speed and 512MB cache, this drive delivers reliable performance with a 2 million hour MTBF rating and support for up to 550TB of annual workload. The drive incorporates Synology's proprietary firmware optimizations and tight integration with DiskStation Manager (DSM) to enhance multi-client sequential read performance by up to 35%.
Built with persistent write cache technology to minimize data corruption risks during unexpected power loss, the HAT5320-4T undergoes over 500,000 hours of compatibility and stress testing with Synology NAS and IP SAN systems. The SATA III (6 Gb/s) interface ensures broad compatibility with enterprise storage infrastructure, while the 512e sector format provides optimal performance and capacity utilization. Operating temperature range is 5-60°C with non-operating tolerance from -40 to 70°C, making it suitable for diverse deployment scenarios.
Key specifications and features:
- Capacity: 4TB with 512e sector size
- Interface: SATA III (6 Gb/s)
- Speed: 7200 RPM with 512MB cache
- Reliability: 2 million hour MTBF, 550TB/year workload rating
- Performance: Sequential read up to 281 MiB/s
- Technology: Persistent write cache, DSM firmware optimization
- Compatibility: Synology NAS, IP SAN, video surveillance, and server systems
| Type | Enterprise HDD |
| Capacity | 4 TB |
| Form Factor | 3.5 inch |
| Interface | SATA III (6 Gb/s) |
| Rotational Speed | 7200 RPM |
| Cache Size | 512 MB |
| Sector Size | 512e |
| Sequential Read Speed | 281 MiB/s |
| MTBF | 2,000,000 hours |
| Annual Workload Rating | 550 TB/year |
| Operating Temperature | 5°C to 60°C |
| Non-Operating Temperature | -40°C to 70°C |
| Operating Humidity | 5% to 90% RH |
| Storage Humidity | 5% to 95% RH |
| Physical Dimensions (Drive Only) | 101.8 mm (W) x 147 mm (D) x 26.1 mm (H) |
| Weight (Drive Only) | 690 g |
| Design | Air-filled |
| Features | Persistent write cache, DSM optimization, hot-swap compatible, 500,000+ hours compatibility testing |
| Compatibility | Synology NAS, IP SAN, video surveillance systems, servers, storage systems |