ModelBrandWestern DigitalSeriesCaviar SE16ModelWD2500KSPackagingBare DrivePerformanceInterfaceSATA 3.0Gb/sCapacity250GBRPM7200 RPMCache16MBAverage Seek Time8.9msAverage Write Time10.9msAverage Latency4.2msPhysical SpecForm Factor3.5"FeaturesFeaturesCool operating temperature - WD hard drives are designed to have the lowest power consumption of any high-capacity, desktop-class hard drive which lowers the operating temperature for enhanced drive reliability. Whisper quiet - These highly reliable drives deliver technologically advanced acoustics. With its WhisperDrive and SoftSeek technologies, WD has minimized noise to levels virtually imperceptible to the human ear in home and business environments.