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30TB hard drives with HAMR tech are now a reality, and I'm thrilled

Seagate's Mozaic 3+ drives have high-density platters and can last longer than regular HDDs.

(Image credit: Nicholas Sutrich / Android Central)In Hardwired, AC Senior Editor Harish Jonnalagadda delves into all things hardware, including phones, storage servers, and routers. (Image credit: Harish Jonnalagadda / Android Central)Because of the way the tech works, only the data in the area targeted by the laser diode is altered, and once it cools, it regains its magnetic coercivity. To achieve this, Seagate is using custom hard drive platters that consist of an iron-platinum alloy and a glass substrate, and as the material has higher coercivity, it is thermally stable until it comes into contact with the laser.

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