Basic parameters Applicable types: desktop Hard Disk Drive size: 3.5 inches Hard Disk Drive capacity: 500 gb Disc quantity: 1 tablet Single disk capacity: 500 gb Cache: 16 MB Speed: 7200 RPM Interface types: SATA3.0 Interface rate: 6 gb/s Performance parameters External transmission rate: 126 MB/SEC Power: the read/write: 6.8 W Idle: 6.1 W Sleep: 0.7 W Noise: idle: 28 decibels Search: 33 db Other parameters Product size: 26.1 * 147 * 101.6 mm Product weight: 690 g Other performance: a IntelliSeek, IntelliPower, NoTouch (slope loading) technology, can effectively reduce the power consumption and the noise of the rotating disc.