Seagate Barracuda 500GB 5400 RPM Computing Laptop Internal Hard Disk Drive ( ST500LM030 )

128MB buffer. 5400-RPM spindle speed. Full-track multiple-sector transfer capability without local processor intervention. High instantaneous (burst) data-transfer rates (up to 6Gb/s). MTC Technology, proprietary data flow management Native Command Queuing (NCQ) with command ordering. Perpendicular recording technology. Quiet operation. Fluid Dynamic Bearing (FDB) motor. SeaTools diagnostic software performs a drive self-test that eliminates unnecessary drive returns. State-of-the-art cache and on-the-fly error-correction algorithms. Support for Read Multiple and Write Multiple commands. Support for S.M.A.R.T. drive monitoring and reporting. Worldwide Name (WWN) capability uniquely identifies the drive