WD Blue 750GB Everyday PC Desktop Hard Drive: 3.5 Inch, SATA 6 Gb/s, 7200 RPM, 64MB Cache - WD7500AZEX WD Blue hard drives have a multitude of features including third generation SATA interface with 6 GB/s transfer rate, plus rock solid performance and ultra-cool and quiet operation. WhisperDrive technology minimizes noise to levels near the threshold of human hearing. SoftSeek technology streamlines read/write seeking algorithms, resulting in more efficient operation. 750 GB capacity holds up to 150,000 digital photos, 187,000 MP3 files, and 190 hours of HD video. 2 year limited warranty.