WD Red Plus 3.5" 4TB, 5400 RPM, 128MB, SATA III Hard Drive for NAS

The WD Red Plus WD40EFZZ is a 3.5-inch internal hard drive engineered for use in Network Attached Storage (NAS) systems. It is designed for continuous 24/7 operation, making it suitable for the multi-user environments found in home and small office setups. This drive is validated for compatibility within multi-drive enclosures, where it is intended to handle data storage, sharing, and backup workloads. Its construction focuses on reliability under the demands of constant use.

This model utilizes a standard SATA interface, ensuring broad compatibility with a wide range of NAS hardware. The drive's firmware is tuned to balance performance with power efficiency, a key consideration for always-on systems. It supports S.M.A.R.T. technology, which allows for monitoring the drive's operational health to anticipate potential issues. The hardware and software are integrated to provide consistent operation for sustained data access and storage tasks.

• 4 TB storage capacity
• 3.5-inch form factor
• SATA 6 Gbit/s interface
• 5400 RPM rotational speed
• 128 MB cache size
• Up to 180 MB/s write speed
• Optimized for 1- to 8-bay NAS systems
• 180 TB per year workload rating
• 1,000,000-hour Mean Time Between Failures (MTBF)
• Dimensions: 101.6 x 147 x 26.1 mm
• Weight: 570 g