Synology 12TB 3.5 SAS 12Gb/s Enterprise Hard Drive – HAS5310-12T

Enterprise-Grade Durability for 24/7 Environments

The Synology HAS5310-12T is a 12TB enterprise-class SAS hard drive engineered to thrive in the most demanding data center and high-availability storage environments. Designed for continuous 24/7 operation, this drive is rated for an impressive 2.5 million hours Mean Time Between Failure (MTBF) and a massive workload rating of up to 550 TB per year. This level of endurance ensures that your mission-critical data remains accessible even under heavy concurrent client access, making it the bedrock of enterprise storage solutions.

Seamless Integration and Maximum Reliability

Every HAS5310-12T drive undergoes over 200,000 hours of rigorous validation and stress testing specifically on Synology hardware, including the SA, HD, and UC Series storage systems. This deep integration ensures that the drive firmware is perfectly tuned to the Synology DiskStation Manager (DSM) environment. This collaboration between hardware and software allows for up to 19% faster RAID array rebuild speeds compared to standard enterprise drives, significantly reducing the window of vulnerability while the system is in a degraded state.

Advanced Data Protection and Performance

Reliability is further bolstered by Persistent Write Cache technology. This feature minimizes the risk of data corruption during sudden power loss by ensuring that data currently in flight is handled safely. The drive utilizes a Helium-sealed 3.5-inch design to achieve high capacity while maintaining a stable internal environment, which reduces friction and power consumption. With a rotational speed of 7,200 RPM and a SAS 12 Gb/s interface, the HAS5310-12T delivers a sustained data transfer speed of 281 MB/s, empowering host systems to serve large pools of users without performance bottlenecks.

Streamlined Maintenance and Long-Term Support

Maintenance is simplified through the Synology ecosystem, where drive firmware updates can be performed directly through the DSM interface. This one-stop update capability eliminates the need for complex external tools, increasing system service availability and reducing total cost of ownership. Backed by Synology’s 5-year limited warranty, the HAS5310-12T provides long-term peace of mind and technical support for IT professionals managing scalable, high-availability server infrastructures.