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. 1 TB capacity holds up to 200,000 digital photos, 250,000 MP3 files, and 120 hours of HD video. 2 year limited warranty.