Western Digital - WD Black 4TB 3.5" Internal Hard Drive - SATA - 7200 RPM - 64 MB Buffer (WD4003FZEX)

Upgrade today with the latest generation of the WD_BLAC Gaming Hard Drive for the capacity you need and the performance you want. Available with up to 64 MiB of DRAM cache on higher-capacity models, WD_BLACK Gaming Hard Drives are optimized for performance so you can spend more time playing the games you love most. Combine WD_BLACK Gaming Hard Drive with a WD_BLACK SSD for a dual-drive configuration, enabling additional caching of the operating system onto the SSD for even greater PC gaming performance. All together, upgrading your older or slower hard drive to the latest generation of WD_BLACK HDDs gives you speedy performance, high capacities, and industry-leading 5-year limited warranty for an inspiring three-in-one storage solution.

The Seagate ST4000NM0115 is a 4-terabyte internal hard drive designed for enterprise environments, offering high storage capacity and reliable performance. It features a 7200 RPM spindle speed, 128 MB cache, and a SATA 6Gb/s interface, ensuring fast data transfer rates up to 226 MB/s. Built for continuous operation, it has a mean time between failures (MTBF) of 2 million hours and is engineered to handle operating shocks up to 70Gs during read and 40Gs during write operations. Additionally, it operates efficiently with an average idle power consumption of 5.45 W and average operating power of 6.94 W.

The WD Purple 4TB Surveillance Hard Drive is specifically engineered for high-definition security systems, providing reliable 24/7 operation and supporting up to 64 cameras. It features a 64MB cache and a data transfer rate of up to 150 MB/s, ensuring efficient data handling. Designed for durability, it offers a workload rating of 180TB per year and a mean time between failures (MTBF) of 1,000,000 hours. Additionally, it operates efficiently with a power consumption of 5.1W during read/write operations and 4.5W when idle.