The Samsung / Seagate 1TB 5400RPM 2.5" SATA Hard Drive ST1000LM024 is a high-capacity internal laptop drive with a sleek silver design. With a rotation speed of 5400 RPM and a cache size of 8 MB, this HDD offers fast data access and transfer. As part of the Momentus product line, this hard drive is reliable and efficient for use in laptops and other devices. With a storage capacity of 1TB, this SATA II interface hard drive is a great choice for storing a large amount of data and applications.