WD Blue 4TB 3.5" Internal Hard Drive 5400 RPM Class, SATA 6 Gb/s, 256MB Cache, 2 Year Warranty

Reliable everyday computing Western Digital quality and reliability Free Acronis True Image WD Edition cloning software Capacities up to 8TB(1) | (1) 1MB = 1 million bytes, 1GB = 1 billion bytes, and 1TB = 1 trillion bytes. Actual user capacity may be less depending on operating environment 2-year limited warranty