Review on 12TB HGST - WD Ultrastar DC HC520 Helium HDD Review: High-Capacity SATA 6Gb/s Hard Drive by Jacob Leon

I've been a fan of Ultrastar hard drives since before Western Digital bought Hitachi's hard drive business. HGST/Hitachi drives are consistently ranked #1 in Backblaze's annual drive analysis report. For many years I have been using Hitachi drives in a large enterprise environment with thousands of drives in a high density storage cluster. Have also used dozens of these at home for almost a decade. There are very few drive failures. Trouble-free operation for many years with a 5-year guarantee. These new helium-filled drives live up to Ultrastar's reputation. Excellent quality, relatively quiet acoustics and lower operating temperature than air-filled drives. They operate in a low 80 degree range, installed in 8-bay cases. Other air-fed drives in the same case will run at least 10 degrees warmer. These are brand new wheels with a 5-year manufacturer's guarantee. I checked this on the HGST guarantee check website. I ordered 3 discs which arrived in a box with a plastic disc hanger insert that could hold 4 discs. Very satisfied with the product and service from "ServerPartDeals".