Features More for the money with this high quality Product Offers premium quality at outstanding saving Excellent product 100% satisfaction Description Product Description Our all new next-generation WD Black drives deliver improved performance that heightens the experience of your PC playground. These performance drives offer enhanced features over the previous generation to maximize system performance, allowing you to have more fun creating while spending less time waiting. Brand Name: WD Buffer: 64 MB Drive Interface Standard: SATA/600 Drive Interface: SATA Drive Type: Internal Drive Width: 3.5 Product Family: Black Product Type: Hard Drive Rotational Speed: 7200 rpm Storage Capacity: 4 TB Drive Performance Buffer: 64 MB Maximum External Data Transfer Rate: 768 MBps (6 Gbps) Maximum Internal Data Transfer Rate: 171 MBps (1.3 Gbps) Rotational Speed: 7200 rpm Drivetrain Drive Type: Internal General Information Brand Name: WD Manufacturer Part Number: WD4003FZEX-20PK Manufacturer: Western Digital Corporation Marketing Information: Our all new next-generation WD Black drives deliver improved performance that heightens the experience of your PC playground. These performance drives offer enhanced features over the previous generation to maximize system performance, allowing you to have more fun creating while spending less time waiting. Packaged Quantity: