Western Digital 4 TB WD Red SATA III 5400 RPM 64 MB Cache Bulk/OEM NAS Hard Drive WD40EFRX

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Western Digital 4 TB WD Red SATA III 5400 RPM 64 MB Features

• Available in capacities ranging from 1-14TB with support for up to 8 bays

• 5400RPM performance class

• Supports up to 180 TB/yr workload rate*| * Workload Rate is defined as the amount of user data transferred to or from the hard drive. Workload Rate is annualized (TB transferred ✕ (8760 / recorded power-on hours))

• NASware firmware for compatibility

• Small or medium business NAS systems in a 24x7 environment

• 3-year limited warranty

• This model uses CMR technology and is being renamed “WD Red Plus” to distinguish it from the current “WD Red” product, which uses SMR technology

• During this transition period, WD Red Plus devices may be delivered with a ”WD Red” label, but rest assured the device you are receiving will be the CMR-version of WD Red and can be confirmed by the model number

About Western Digital 4 TB WD Red SATA III 5400 RPM 64 MB

WD Red is the only hard drive designed for NAS systems that have 1-5 drive bays. Available in capacities ranging from 1 TB to 4 TB, WD Red is designed specifically for home and small office NAS systems. The drives are extensively tested for compatibility and reliability in the demanding operating environment of a 24x7 NAS system. WD's exclusive NASware firmware technology enables seamless integration and balanced performance. Innovative technology reduces power consumption and lowers the operating temperature, and with a 35% improvement in MTBF over desktop drives, WD Red is a more reliable and robust NAS hard drive solution.