Synology 16TB HAS5300 SAS-3 3.5" Internal Enterprise HDD, Black

They allow Synology systems to repair degraded RAID arrays up to 27% faster than similar class and capacity drives. Rigorous tests and compatibility verification help ensure maximum reliability on Synology systems, even while handling the most extreme workloads. Drive firmware updates are shipped together with DSM updates, easing the burden on IT teams and ensuring your drives are always running the latest firmware versions. A 2.5 million hour MTTF, support for workloads of up to 550TB per year, and persistent write cache technology come together to safeguard data integrity.