Seagate - Momentus XT ST95005620AS - Hybrid hard drive - 500 GB - internal - 2.5'' - SATA-300 - 7200 rpm - buffer: 32 MB - ( 4 GB Flash ) by SEAGATE

The Seagate Momentus XT drive offers hybrid storage with Adaptive Memory technology, enabling the drive to deliver higher capacity and SSD-like performance
The Momentus XT drive is designed for all standard laptop PCs and is OS-, driver- and software-independent, making this drive easy to integrate and easy to use
Adaptive Memory technology enables the drive to tailor its performance to the user
Whether you are gaming, editing digital media or crunching numbers, the performance is optimized and ready for your next move
Adaptive Memory technology is a Seagate data management technique that constantly monitors and quickly recalls data usage and preferences
It places files and data that the user will likely access again and again into the solid state portion of the drive
When the user requires the data or application file, it already sits in an instantly accessible location, thereby customizing system performance for the user
Constant monitoring dynamically improves overall response time based on personal usage
You can perform at your best no matter how you use your laptop PC