Synology 4TB 3.5” Enterprise-Grade SATA HDD designed for Synology NAS(HAT5320-4T)

-Capacity: 4TB
-Form factor: 3.5"
-Interface: SATA 6 Gb/s
-Rotational speed: 7,200 rpm
-Maximum Sustained Data Transfer Speed (Typ.): 281MB/s
-Warranty 5 years