HAT5310-18T-BUILD Synology HAT5310-18T 18TB SATA III (6Gb/s) 512MB 3.5" Enterprise HDD

Enterprise 3.5in SATA HDD platform for NAS capacity scaling with the HAT5310-18T-BUILD

HAT5310-18T-BUILD is a Synology HAT5310 Series 18TB 3.5in enterprise HDD engineered for predictable throughput and high availability in SATA 6Gb/s storage tiers. Designed for sustained 24x7 duty cycles, it aligns with NAS and storage arrays where consistent sequential performance and controlled latency are required for multi-user file services and large volume repositories.

In architectures where the CPU and memory resources of the NAS head must be matched by stable disk behaviour, HAT5310-18T-BUILD provides a 7200RPM class profile with 512MB cache to reduce host-side caching pressure during write bursts and metadata-heavy operations. Its SATA III interface supports broad controller compatibility and straightforward PCIe expansion strategies, enabling capacity scaling by adding SATA HBAs or expanding disk shelves without introducing protocol translation layers. Advanced Format 512e is optimised for modern filesystems and RAID groups, while sustained transfer performance up to 268MB/s supports efficient rebuild windows and bulk ingest workflows.

Why Choose the HAT5310-18T-BUILD?

HAT5310-18T-BUILD delivers high capacity per bay with an enterprise reliability profile, supporting dense storage nodes where power, cooling, and rack space are constrained. With a 2.5M hour MTBF target and operating range suited to data centre environments, HAT5310-18T-BUILD is positioned for scalable SATA pools that prioritise operational consistency, predictable lifecycle planning, and service continuity across growing datasets.

Synology designs the HAT5310 family to integrate cleanly into storage platforms with controlled firmware behaviour, qualification discipline, and long-term availability expectations, aligning drive operation with modern data centre standards for uptime, monitoring, and maintainable capacity growth.

Key Applications:

• NAS capacity expansion for SATA HDD bays
• SMB/NFS file services datasets
• General-purpose bulk storage
• Surveillance retention and archive tiers
• Backup repositories and cold data pools

At Happyware - Server Hardware you benefit from non-binding offers tailored precisely to your storage expansion plan for HAT5310-18T-BUILD and the option to extend the warranty up to 6 years for added investment protection in long-life NAS deployments.