Seagate Momentus XT 250 GB 7200RPM SATA 3Gb/s 32 MB Cache 2.5 Inch Solid State Hybrid Drive ST92505610AS-Bare Drive Solid state hybrid drive delivers SSD-like performance with hard drive capacity options Adaptive Memory technology customizes performance by aligning to user needs for overall improved system response 80 percent faster performance than traditional 7200-RPM drives in PCMark Vantage benchmark scores Low heat and vibration - quiet operation without giving up storage capacity and affordability OS- and application-independent - designed for any SATA standard laptop PC