The Synology HAS5300 and HAS5310 Series are high-performance 3.5" SAS 12Gb/s enterprise hard drives engineered for mission-critical storage deployments, available in capacities of 8TB, 12TB, 16TB, and 20TB to handle intensive workloads. All models feature 7,200 RPM spindle speeds delivering sustained transfer rates from 241 MB/s to 281 MB/s, ensuring fast and consistent data access for demanding applications. Optimized for continuous 24/7 operation with efficient power consumption (4.36W-9.87W depending on workload) and operating temperatures from 5°C to 60°C, these enterprise-grade SAS drives are ideal for Synology SA3400, SA3600, SA3410, and SA3610 NAS systems with RX1222sas expansion units running mission-critical applications including virtualization storage, high-availability clusters, RAID configurations, backup repositories, and large-scale file servers requiring proven enterprise-class reliability, backed by a comprehensive 5-year warranty for enhanced dependability and peace of mind.