HGST 0S03508 is a 2.5-inch portable laptop SATA hard drive with a capacity of 1TB and a rotational speed of 5400RPM. It features an 8MB cache and a SATA 6Gb/s interface. The hard drive is designed for high-performance applications and is ideal for use in laptops, notebooks, and other mobile devices. It is also backed by a 3-year limited warranty.

With its high capacity, the HGST 0S03508 can store a large number of files, including music, videos, photos, and documents. The 5400RPM rotational speed provides fast data access and transfer speeds, making it suitable for demanding applications such as video editing and gaming. The 8MB cache helps to improve performance by storing frequently accessed data, reducing the need to access the slower hard drive platters.