WD Black WD4005FZBX (4TB,256 MB Cache ,3.5″) Hard Disk Drive

Product Specifications
Capacity: 4TB,
Form Factor: 3.5-Inch,
Connector/Interface: SATA,
Transfer Rate: Up to 267MB/s,
Disk Speed: 7200 RPM,
Recording Technology: CMR,
Cache Size: 256 MB,
Dimensions: 5.79″ x 4″ x 1.03″,
Weight: 1.58 lbs,
Model Number: WD4006FZBX,
Operating Temperature: 5°C to 60°C,
Non-Operating Temperature: -40°C to 70°C,
Drive Size: 3.5″,
Features: Designed for gamers, system builders, and professionals; includes 2X DRAM cache (up to 256 MiB) for faster read speeds on higher-capacity models, StableTrac™, and Dynamic Cache Technology (2TB and up),
Compatibility: PC, Mac (requires reformatting).