HGST Ultrastar DC HC520 HUH721212ALE604 12 TB Hard Drive - 3.5in Internal - SATA (SATA/600) - 7200rpm - 5 Year Warranty - 20 Pack

Up to 2.5M hours MTBF with a 5-year limited warranty Five generations of HelioSeal technology (10TB and above) Rotational Vibration Safeguard (RVS) technology for vibration protection Designed with a workload rating up to 550TB per year, 10X desktop rating