The WD Black WD4003FZEX internal hard drive from Western Digital offers incredible performance. Designed for creative professionals, the WD Black WD4003FZEX is perfect for demanding applications such as gaming, editing and powerful PCs. Particularly robust, the WD Black is equipped with vibration control technology (VCT) and Stabletrac technology that optimizes performance over time. And to effectively protect your data in case of failure, protection against data corruption (CPT) severely limits potential problems.