WD6402AAEX-00Z3A0 Western Digital Caviar Black 640GB 7200RPM SATA 6Gb/s 64MB Cache 3.5-inch Hard Drive

The Western Digital Caviar Black hard drive delivers blazing speed and dependable storage for demanding desktop and gaming systems. Its high‑performance motor and generous cache ensure rapid data access and smooth multitasking, while the rugged construction resists shock and vibration for long‑term reliability. Ideal for gamers, creative professionals, and power users, this drive combines capacity and speed to keep your applications, media libraries, and virtual machines running flawlessly. With WD’s proven track record, you can trust this drive to deliver consistent performance and durability, making it a smart choice for any high‑end PC build.