Synology HAT3320 Plus Series Internal Hard Drive, 20TB Capacity, 3.5 Inch, SATA 6Gb/s, 7200 RPM, CMR, 295MB/s Transfer Speed, 1.2 Million Hours MTBF | HAT3320-20T

Synology HAT3320-20T Designed to meet the reliability, endurance, and performance requirements of 24/7 storage in small- and medium-sized business storage systems, the 20TB HAT3320 Plus Series SATA III 3.5" Internal NAS HDD from Synology delivers NAS-class reliability to ensure consistent performance in high-uptime and multiuser environments. The HAT3320 Plus has passed 500,000 hours of testing and has a mean time between failure (MTBF) rating of 1.2 million hours and a yearly workload rating of 180TB. It is helium filled and features a storage capacity of 20TB, a SATA III 6 Gb/s interface, a 1GB cache, and a rotational speed of 7200 rpm, all of which help to ensure uninterrupted data transfers with sustained speeds of up to 295 MB/s. Specifications Capacity 20 TB Form Factor 3.5" Interface SATA 6 Gb/s Rotational Speed 7,200 rpm Maximum Sustained Data Transfer Speed (Typ.) 295 MB/s Active Idle (Typ.) 4.35 W Random Read / Write (4KB Q1) (Typ.) 7.62 W Notes Power consumption may differ according to configurations and platforms. Operating 5°C to 60°C (41°F to 140°F) Non-operating -40°C to 70°C (-40°F to 158°F)