Synology Plus Series HAT3300 4TB 5400 RPM NAS Hard Drive

The Synology Plus Series HAT3300-4T is a 4TB internal hard drive purpose-built for Synology NAS enclosures, delivering the tight hardware-software integration that IT administrators and home power users rely on for always-on storage. Unlike generic drives pressed into NAS duty, the HAT3300 series undergoes more than 500,000 hours of compatibility and stress testing within Synology systems, ensuring predictable 24/7 multi-user performance without unexpected dropouts or firmware conflicts. At its core, the drive uses conventional magnetic recording (CMR) technology throughout its entire lifespan. CMR avoids the variable write-speed behaviour sometimes associated with other recording methods, so backup jobs, RAID rebuilds, and simultaneous read-write workloads proceed at consistent throughput. Synology rates the HAT3300 4TB for a workload of 300 TB per year — headroom well above typical small-business or prosumer NAS usage patterns. Firmware management is a standout advantage for Synology shop owners: updates are delivered and applied directly through DSM (DiskStation Manager) without requiring physical drive removal or third-party utilities. This simplifies maintenance windows and keeps drives current with the latest stability patches. The drive operates over a standard SATA 6 Gb/s interface and fits any 3.5-inch bay. Its active idle power draw of approximately 3.96 W keeps thermal output modest in multi-bay enclosures, while the 0 °C to 65 °C operating temperature range accommodates typical rack and desktop NAS environments. Verified Hardware Specifications: • Model: HAT3300-4T • Capacity: 4 TB • Form Factor: 3.5-inch • Interface: SATA 6 Gb/s • Rotational Speed: 5,400 RPM • Max Sustained Data Transfer Speed: 202 MB/s (typical) • Recording Technology: CMR (Conventional Magnetic Recording) • Workload Rating: 300 TB/year • MTBF: Up to 1,200,000 hours • Power — Active Idle (typical): 3.96 W • Power — Random Read/Write 4KB Q1 (typical): 4.85 W • Operating Temperature: 0 °C to 65 °C • Non-Operating Temperature: −40 °C to 70 °C • Warranty: 3 Years Ideal for Synology DS- and RS-series NAS devices in home, SMB, and departmental deployments where data integrity and predictable throughput are non-negotiable