Seagate Ultra Mobile SSHD (Solid State Hybrid Drive) is a type of storage device that combines the speed of an SSD (Solid State Drive) with the storage capacity of an HDD (Hard Disk Drive). It is designed specifically for laptops and ultrabooks.

• Boot - Seagate Ultra Mobile SSHDs are known for incredibly fast boot-up times, and now they are even better with fast boot technology. This system boot-up technique can reduce your boot time to mere seconds—for a fast cold-boot start. It can cut your system start-up time by up to 65% over a traditional HDD. Fast boot technology will deliver the quickest boot possible, whether you boot your system once a day or once a week. Your OS boot-up files are always there, ready to work.
• Flash Management - Seagate Ultra Mobile SSHDs also implement a management feature that provides seamless integration between hardware, firmware and high-speed NAND flash while maintaining data integrity under all conditions—any system, any OS and with any driver.
• Adaptive Memory Technology - Adaptive Memory technology delivers SSD-like response from the applications and files you use the most. It enables the Ultra Mobile SSHD drive to effectively and accurately identify frequently-used data and place it in the NAND flash memory. The result is that instant-response experience to help you perform at your best.