The Western Digital WD Blue 4TB 3.5-inch hard drive utilizes Conventional Magnetic Recording (CMR) technology and a 128MB cache to deliver reliable bulk storage with transfer rates reaching up to 185 MB/s. Designed for desktop PC systems, media archiving, and routine system backups, this drive balances high capacity with cool, quiet operation.
Dependable CMR technology for sustained write performance
Unlike drives that utilize shingled recording methods, this WD Blue hard drive uses Conventional Magnetic Recording (CMR) across its entire 4TB capacity. CMR technology maintains predictable write speeds during continuous file transfers, such as saving large video files, full-system disk images, or photo libraries. This ensures that data writing remains stable and reliable without dramatic speed drops during extended copy operations.
Quiet, cool operation for everyday desktop builds
Operating at a 5400 RPM spindle speed, the drive limits thermal output and acoustic noise during active read and write commands. The integrated 128MB cache manages file requests efficiently to streamline access times for frequently used data. By consuming less power and producing less heat than higher-speed drives, it helps maintain a quiet working environment and reduces overall system thermal load.
Standard SATA connectivity and physical compatibility
Built to standard 3.5-inch mounting dimensions of 147 mm by 101.6 mm by 26.1 mm with a total weight of 0.55 kg, the drive fits standard internal desktop drive bays. The SATA 6 Gb/s interface connects directly to desktop motherboards, supporting peak internal data transfer rates up to 185 MB/s for secondary storage drives and local backup arrays.
Tested for reliability with two-year warranty coverage
Engineered to operate in ambient temperatures from 0°C to 60°C (and non-operating storage temperatures from -40°C to 70°C), this internal hard drive provides dependable physical durability for everyday desktop tasks. Western Digital supports the WD40EZZX model with a 2-Year Limited Warranty for clear storage confidence.