
- Model:HAS5310-20T
20TB Storage Capacity
7200 RPM Speed
Up to 281 MB/s Sustained Transfer
2.5M Hours MTBF, 550TB/Year Workload
- 5 Years Warranty from Synology
Overview
The Synology HAS5310 Enterprise 20TB SAS NAS Hard Drive (HAS5310-20T) is a 3.5" SAS 12 Gb/s drive spinning at 7,200 RPM, engineered for top performance and reliability in Synology systems. Unmatched integration with DSM and Synology hardware enable HAS5300 SAS hard drives to reliably deliver class-leading performance in enterprise deployments. HAS5300 drives have passed 200,000 hours of rigorous testing on Synology hardware, feature a 2.5M-hour MTBF, and are covered by Synology's 5-year limited warranty.
The HAS5300 series drives leverage the low-latency SAS protocol. When paired with high-performance and highly scalable Synology HD, SA, or UC series solutions, they ensure that mission-critical workloads always have access to dependable and fast storage. Built on two decades of storage expertise, Synology HAS5300 are optimized for critical workloads that matter, providing 8% faster sequential read speeds compared to similar-class and capacity drives.
Synology Enterprise Series SAS drives undergo over 1,000 stress test cycles and more than 200,000 hours of cumulative testing to ensure maximum reliability. A 2.5 million-hour MTBF, support for up to 550 TB per year workloads, and persistent write cache technology come together to safeguard data integrity. Automatic firmware update notifications and one-click installation through DSM minimize maintenance workload and reduce the chance of oversights.
- 2.5 Million Hours MTBF for enterprise-grade reliability
- 550 TB/Year workload rating for demanding environments
- Up to 281 MB/s sustained data transfer speed
- 19% faster drive repair in Synology NAS systems
- 8% faster sequential read speeds vs. similar-class drives
- Low-latency SAS 12 Gb/s protocol for mission-critical workloads
- One-click firmware updates through DSM
- 200,000+ hours of rigorous stress testing and validation
Specifications
- Capacity
- 20 TB
- Form Factor
- 3.5"
- Interface
- SAS 12 Gb/s
- Rotational Speed
- 7,200 rpm
- Maximum Sustained Data Transfer Speed (Typ.)
- 281 MB/s
- Warranty
- 5 Years
- Notes
- The warranty period starts from the purchase date as stated on your purchase receipt. <a href="https://www.synology.com/en-global/company/legal/warranty">Learn more</a>
- Active Idle (Typ.)
- 4.74 W
- Random Read / Write (4KB Q1) (Typ.)
- 8.46 W
- Notes
- Power consumption may differ according to configurations and platforms.
- Operating
- 5°C to 60°C (41°F to 140°F)
- Non-operating
- -40°C to 70°C (-40°F to 158°F)
Warranty
5 Years manufacturer warranty from Synology. Warranty service is provided by the brand's authorised service centre under the brand's own terms; keep the original invoice and the serial number for any claim, and we will guide you through the process. Details are in our Warranty Policy.






