4TB Desktop Performance 7200 rpm SATA III 3.5" Internal HDD Retail Kit from WD features a SATA III 6 Gb/s interface along with a large 4TB storage capacity giving you fast access to a large amount of data. This WD drive is designed for demanding environments where enhanced performance is crucial such as photo and video editing and gaming. With a dual processor and dynamic cache you can rest assured this drive will be there when you need it. Enhanced Performance Take advantage of enhanced performance in this 7200rpm drive delivering the speed necessary for some of the most demanding applications like photo and video editing and Internet gaming. Improved Processing Power The dual processor and dynamic cache improve the drive's performance overall. Take advantage of twice the processing power and optimized read and write speeds for less throughput congestion and faster performance. StableTrac The motor shaft is secured at both ends to reduce system-induced vibration and increase stability enabling consistently higher performance. NoTouch Ramp Load Technology The recording head never touches the disk media ensuring significantly less wear as well as better drive protection in transit.