Synology 20TB HAT3320 Plus Series SATA III 3.5" Internal NAS HDD

Synology 20TB HAT3320 Plus Series SATA III 3.5" Internal NAS HDD Overview

Built for reliable, around-the-clock operation, the Synology HAT3320 Plus Series 20TB SATA III 3.5" Internal NAS HDD is engineered specifically for small and medium-sized business NAS environments. Designed to handle 24/7 workloads, this enterprise-grade hard drive delivers the endurance, performance, and dependability required for multi-user storage, backup, and data protection applications.

Offering a massive 20TB storage capacity, the HAT3320 Plus features a 7200 RPM spindle speed, a 1GB cache, and a SATA III 6 Gb/s interface to provide sustained transfer speeds of up to 295 MB/s. Conventional Magnetic Recording (CMR) technology ensures consistent write performance, making it well suited for RAID arrays and always-on NAS deployments.

Engineered for long-term reliability, the drive has undergone over 500,000 hours of rigorous compatibility and stress testing and is rated for a 1.2 million-hour MTBF and 180TB annual workload, delivering dependable operation even under demanding multi-user workloads.

When installed in a compatible Synology NAS, firmware updates can be performed directly through Synology DiskStation Manager (DSM), simplifying maintenance without removing the drive or using third-party utilities.

Storage

• Capacity: 20TB
• Drive Type: 3.5" SATA III Hard Disk Drive (7200 RPM)

Performance

• Maximum Read Speed: Up to 295 MB/s
• Maximum Write Speed: Up to 295 MB/s
• Encryption Support: No
• Mean Time Between Failures (MTBF): 1.2 Million Hours
• Annual Workload Rating: 180TB/Year

Power

• Power Consumption (Active): 7.62W
• Power Consumption (Idle): 4.35W
• Input Voltage: 5 to 12V DC

Environmental

• Operating Temperature: 5°C to 60°C
• Storage Temperature: -40°C to 70°C

Physical

• Dimensions: 147 x 101.85 x 26.1mm
• Weight: 730g