Detail overview General Information : Manufacturer : SYNOLOGY Manufacturer Part : HAT5300-4T Product Series : Hat5300 Product Name : Internal Enterprise Hard Disk Drive. Technical Information : Storage Capacity : 4tb Rotational Speed : 7200rpm Interface Type : Sata-6gbps Form Factor : 3.5 Inch Buffer Size : 256mb Sector Size : 512e Performance : Maximum Sustained Data Transfer Speed (typ.) : 243 Mib/s Workload Rating : 550 Tb Transferred Per Year Mean Time To Failure (mttf) : 2.0 Million Hours Power Consumption : Supply Voltage : 12 V (± 10%) / 5 V (+10/-7%) Active Idle (typ.) : 4.07 W Random Read / Write (4kb Q1) (typ.) : 7.76w Dimensions & Weight : Dimensions : 26.1 Mm X 101.85 Mm X 147 Mm Weight : 693 G Condition : Brand New. Availability : In Stock. Our Warranty : 30 Days.