Seagate Momentus XT 500 GB 2.5 Inch Solid State Hybrid Drive ST95005620AS

Solid state hybrid drive delivers SSD-like performance with hard drive capacity options by storing most accessed data on 4 GB SLC SSD
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
Ships in Certified Frustration-Free Packaging