Western Digital 4TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 128 MB Cache, 3.5" -WD40EFZX

Western Digital 4TB WD Red Plus NAS Hard Drive (WD40EFZX) is designed for small to medium business NAS systems, supporting up to 8 bays with 24/7 reliability. Featuring a 5400 RPM speed, 128MB cache, and SATA 6Gb/s interface, it ensures smooth data transfers and enhanced RAID performance. CMR technology and NASware firmware optimize drive stability, compatibility, and efficiency for file sharing, backups, and multimedia storage. With a 180TB/year workload rating, this drive is built for demanding NAS environments, providing long-term durability and consistent performance for business and personal data storage needs.