The Seagate Momentous ST320LT009 is an internal, 7200 RPM hard drive with a storage capacity of 320 GB. This Seagate internal HDD is suitable for use with entry-level and high-performance laptops, netbooks, ultraportable systems, and slim consumer electronics devices. Its SATA interface facilitates data transfer at speeds of 3 Gbps, making this Seagate internal HDD fulfil the enhanced backup and archiving demands of businesses. The self-encrypting drive (SED) of the Seagate Momentous hard drive ensures high-grade security to your stored data. The SmartAlign technology dynamically controls read-modify-write conditions in this hard drive without host computer intervention, ensuring better operational performance.