Please Note: The picture for this listing is a stock image. The drives you receive will be this exact model. The year of manufacture will be between the years 2013 and 2014. Lot of 4 Western Digital WD Red 3TB Internal NAS SATA Hard Drives. These hard drives are compatible with PC and have a rotation speed of 5400 RPM, and come in a 3.5-inch form factor. They are designed for use as internal desktop drives with a storage capacity of 3TB each. With SATA III interface and a cache of 64 MB, these HDDs offer a transfer rate of 1176 Mbps and are ideal for use in NAS systems for reliable storage and data access.