The HGST 1TB 2.5 SATA 7200RPM Internal Hard Drive HDD HTS721010A9E630 is a high-quality internal hard drive designed for laptops. With a storage capacity of 1TB, this Hitachi drive offers fast data transfer with SATA III interface and a rotation speed of 7200RPM. The 2.5-inch form factor makes it compatible with a wide range of devices, making it a reliable choice for storage needs. The lot of 2 units ensures that you have a spare drive on hand for any potential replacements or upgrades.