The Western Digital WD ShareSpace WD40000A4NC-00 4TB (4x 1TB) is a network attached storage device that offers a storage capacity of 4TB, with each individual drive being 1TB. It is designed to be compatible with PCs, memory vaults, and Macs, making it a versatile option for various devices. With its sleek silver design and low noise level, this storage solution is perfect for home or office use. The WD ShareSpace product line ensures reliable performance and features like cloud storage, making it an ideal choice for those looking to organize and store their data effectively.