HGST Ultrastar DC HC520 12TB SATA 6Gb 256MB 3.5" Enterprise HDD- HUH721212ALE601
[ G01-1549-CR-5YR ] HGST Ultrastar HC520 HUH721212ALE601 12TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5" Helium Datacenter Hard Drive (Certified Refurbished) - 5 Year Warranty. Why does helium make a diference?.