Seagate Technology has started shipping its hard disk drives featuring a 18TB capacity to select customers, and revealed that HDDs will be more broadly available later this year. But while 18TB drives significantly increase storage capacities of modern datacenters, Seagate has a more important launch set for the next few months, as it also intends to start commercial shipments of its drives based on heat-assisted magnetic recording (HAMR). 

The importance of HAMR — a technology that has been explored for 66 years now — is fundamental as it is expected to enable hard with capacities of up to 80 TB in the coming years.

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