Synology HAT5320-8T 8TB 7200RPM 3.5″ SATA NAS Hard Drive

Synology HAT5320-8T 8TB 7200RPM 3.5″ SATA NAS Hard Drive

Overview

The Synology HAT5320-8T is a 3.5-inch SATA hard disk drive designed for deployment inside Synology NAS and IP SAN storage systems. It is intended for storage administrators and infrastructure engineers operating multi-bay NAS arrays that require predictable throughput, stable RAID behavior, and continuous operation. The drive is part of Synology’s HAT5300 series, which undergoes extensive validation within Synology storage platforms to ensure consistent performance and reliability during long-term operation.

From a hardware standpoint, the HAT5320-8T provides 8 TB of storage capacity and operates at a 7200 RPM spindle speed, enabling consistent sequential throughput across RAID arrays. It connects through a SATA III 6 Gb/s interface and includes a 512 MB cache buffer to support sustained workloads and improve read/write efficiency during large data transfers. The drive supports a sustained transfer rate of approximately 281 MB/s, suitable for file storage, backup repositories, and multi-user data access environments.

The drive is typically installed in rackmount or tower NAS systems with multiple disk bays configured in RAID groups. These deployments commonly include departmental storage servers, backup targets, and surveillance recording arrays where stable sequential throughput and long operational lifespan are required. The workload rating of 550 TB per year and an MTBF rating of 2 million hours allow the drive to operate reliably in environments where disks run continuously.

Integration with Synology DiskStation Manager allows administrators to manage firmware updates directly through the storage management interface. This integration simplifies lifecycle maintenance, ensures firmware compatibility with the NAS operating system, and helps maintain predictable drive behavior within RAID arrays.

A practical deployment example includes a multi-bay NAS configured with RAID 5 or RAID 6 where several HAT5320 drives operate together to deliver shared storage for backup repositories, collaborative file storage, or surveillance footage archives. In these environments, sustained throughput and reliability are prioritized over burst performance.

The HAT5320-8T is not designed for latency-sensitive workloads such as real-time database acceleration or caching layers. Deployments requiring low latency and extremely high IOPS are typically better served by SATA or NVMe solid-state drives.

Technical Specifications