The Toshiba MK1255GSX 120GB 5400RPM 2.5" SATA Internal HDD is a reliable and efficient hard drive designed for laptops. With a storage capacity of 120GB, this HDD provides ample space for storing a variety of data and files. The SATA interface ensures fast and efficient data transfer, while the 5400RPM rotation speed ensures quick and responsive performance. This tested and working product from Toshiba is a dependable choice for enhancing the storage capacity of your laptop.