20 TB 3.5" 7200 RPM Serial ATA III. NAS HDD. 6 Gbit/s. 730 g. Hard drives designed for Synology. See how Synology hard drives deliver reliability, consistent performance, and simplified system management through deep hardware-software integration.. Superior dependability. Using 100% conventional magnetic recording (CMR) technology, Plus Series disk drives ensure consistent write performance throughout their lifespans.. Comprehensive testing. Synology Plus Series drives are subjected to thorough compatibility and stress testing to ensure smooth 24/7 operation under multi-user workloads.. Easy firmware updates. Firmware updates can be performed directly through DSM, ensuring drives benefit from the latest patches while eliminating the need for disk removal.. Tuned for performance. Firmware and operating system–level optimizations enable up to 36% faster sequential reads compared to similar-class third-party drives.. Features. HDD capacity. 20 TB. HDD speed. 7200 RPM. HDD size. 3.5". Interface. Serial ATA III. Type. HDD. Component for. NAS. HDD interface transfer rate. 6 Gbit/s. HDD sustained transfer rate. 295 MiB/s. 24/7 operation. Yes. Workload rate limit. 180 TB/year. Mean time between failures (MTBF). 1200000 h. Power. Power consumption (idle). 4.35 W. Power consumption (write). 7.62 W. Power consumption (read). 7.62 W. Operating voltage. 5 / 12 V. Operational conditions. Operating temperature (T-T). 5 - 60 °C. Storage temperature (T-T). -40 - 70 °C. Operating altitude. -304.8 - 3.048 m. Non-operating altitude. -304.8 - 12.192 m. Packaging content. Manual. Yes. Weight & dimensions. Weight. 730 g. leaflet