The new drive is 25% lighter than the previous generation of Seagate mobile hard drives, weighing in at 3.17 oz.
Seagate did not say when the new, higher-capacity 7mm 2.5-in drives would be available.In 2011, Seagate announced it had broken the 1TB per platter barrier for 3.5-in. hard drives — those used in desktops, servers and storage arrays. Those drives initially had capacities of up to 3TB per drive and a platter areal density of 625 gigabits per square inch.
In its announcement today, Seagate noted that every time drives are made smaller and thinner, valuable space is freed up in mobile devices that can accommodate additional features, such as bigger batteries, more memory and better air circulation