[. . . ] Data Sheet Momentus® XT Powerful, Intelligent, Affordable--Solid State Hybrid Drive 500, 320 and 250GB hard drive · 4GB solid state memory · 7200 RPM · 32MB cache · SATA 3Gb/s with NCQ Key Advantages · Solid state hybrid drive delivers SSD-like performance with hard drive capacity options. [. . . ] 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. Specifications Model Number Solid State Memory, SLC NAND (GB) Interface Cache (MB) Configuration Bytes per Sector Reliabilty/Data Integrity Head-Rest Method Load/Unload Cycles Nonrecoverable Read Errors per Bits Read Power Management Power (W) Seek, Typical Idle, Typical Environmental Temperature (°C) Operating Nonoperating Shock (Gs) Operating: 2ms Nonoperating: 1ms Acoustics (bels--sound power) Idle, Typical Seek, Typical Physical Height (in/mm) Width (in/mm) Depth (in/mm) Weight (lb/g) 500GB1 ST95005620AS 4 SATA 3Gb/s NCQ 32 320GB1 ST93205620AS 4 SATA 3Gb/s NCQ 32 250GB1 ST92505610AS 4 SATA 3Gb/s NCQ 32 512 512 512 QuietStepTM Ramp Load >600, 000 1 per 10E14 QuietStep Ramp Load >600, 000 1 per 10E14 QuietStep Ramp Load >600, 000 1 per 10E14 1. 554 0. 8 1. 554 0. 8 1. 554 0. 8 0 to 60 -40 to 70 350 1000 2. 3 2. 5 0 to 60 -40 to 70 350 1000 2. 3 2. 5 0 to 60 -40 to 70 350 1000 2. 3 2. 5 0. 370/9. 5 2. 75/69. 85 3. 951/100. 35 0. 238/110 0. 370/9. 5 2. 75/69. 85 3. 951/100. 35 0. 238/110 0. 370/9. 5 2. 75/69. 85 3. 951/100. 35 0. 238/110 1 One gigabyte, or GB, equals one billion bytes and one terabyte, or TB, equals one trillion bytes when referring to drive capacity. www. seagate. com 1-800-SEAGATE (1-800-732-4283) AMERICAS ASIA/PACIFIC EUROPE, MIDDLE EAST AND AFRICA Seagate Technology LLC 920 Disc Drive, Scotts Valley, California 95066, United States, 831-438-6550 Seagate Singapore International Headquarters Pte. 7000 Ang Mo Kio Avenue 5, Singapore 569877, 65-6485-3888 Seagate Technology SAS 16­18 rue du Dôme, 92100 Boulogne-Billancourt, France, 33 1-4186 10 00 © 2010 Seagate Technology LLC. Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC in the United States and/or other countries. Adaptive Memory and Momentus are either trademarks or registered trademarks of Seagate Technology LLC or one of its affiliated companies in the United States and/or other countries. [. . . ] Seagate reserves the right to change, without notice, product offerings or specifications. [. . . ]