Internal NAS Hard Drive

HAT3300-4T Overview

The HAT3300-4T from Synology is a Plus Series 4TB 3.5-inch internal SATA III (6Gbps) hard drive engineered specifically for 24/7 multi-user workloads in Synology Plus series NAS enclosures.
Operating at 5,400 RPM with a large 256MB cache, this NAS-optimized drive delivers reliable, energy-efficient storage performance while minimizing heat and vibration. It features a workload rating of up to 180TB per year and a 1-million-hour MTBF, ensuring long-term durability in home office and small-to-medium business environments. Designed for seamless ecosystem integration, the drive allows users to update its firmware directly through Synology DiskStation Manager (DSM), eliminating the need for drive removal during maintenance and providing maximum data reliability and uptime for networked storage arrays.