Name: WD40EFZX Western Digital Red Plus 4TB SATA 6Gb/s 5400 RPM 128MB Cache 3.5-Inch NAS Hard Drive
Brand: Western Digital
SKU: WD40EFZX
Price: 394.83 USD
Availability: InStock
Rating: 4.8 (130 reviews)

Product Overview
The WD40EFZX Western Digital Red Plus 4TB drive provides reliable storage designed specifically for NAS systems. It fits well in environments where consistent operation and data integrity are essential, combining capacity and energy-efficient performance with compatibility tailored to modern NAS setups.

General Information
Brand	Western Digital
Part Number	WD40EFZX

Technical Information
Capacity	4TB
Form Factor	3.5-inch
Disk Format	HDD
Cache	128MB
Spindle Speed	5400 RPM
Hot Pluggable	Yes
Hot Swappable	Yes
Hybrid Drive	No
MTBF	1,000,000 hours

Interfaces/Ports
Interface	SATA 6GB/s

Physical Characteristics
Height	26.1 mm
Width	101.6 mm
Depth	147 mm
Dimensions	26.1 mm x 101.6 mm x 147 mm
Condition	Refurbished
Weight	1.76

Miscellaneous
Eco Friendly	Yes

Product Description
This Western Digital Red Plus 4TB drive is built specifically for network-attached storage (NAS) environments. Designed to handle the demands of multi-drive NAS setups, it offers a balance of storage capacity and reliable performance. Often found in small to medium business or home office NAS devices, this drive supports continuous operation and helps maintain data integrity across multiple users or devices. It benefits IT professionals and home users looking for dependable storage to safeguard their data. Key Features Optimized for NAS workloads with enhanced reliability Quiet and cool operation thanks to 5400 RPM speed Large 128MB cache improves overall performance during file transfers Compatible with SATA 6Gb/s for swift data access Complies with RoHS standards for safer manufacturing This drive is typically deployed in multi-bay NAS enclosures where stable and consistent storage is crucial. Its design reduces heat and noise, making it suitable for continuous use without disruption. Users benefit from its reliability and efficiency, often finding it a practical solution for backup, media storage, and file sharing in both personal and professional settings.

Use Cases
The WD40EFZX Western Digital Red Plus 4TB drive is engineered for multi-drive NAS systems in small and medium-sized business environments. It is ideal for IT professionals managing data storage that demands reliability and continuous uptime in shared network settings. How It's Used: Deployments in SMB NAS arrays to support centralized file sharing and backup operations. Storage clusters for edge computing nodes requiring efficient power consumption and sustained drive performance. Virtualization hosts in remote offices where space and energy efficiency are critical. Media streaming servers that handle concurrent user access and require consistent data throughput. RAID configurations in multi-user environments to maintain data integrity and minimize downtime. This drive enhances system scalability and operational efficiency by addressing workload demands typical in NAS-centric IT infrastructures. Its balance of capacity and low power operation supports continuous data availability and long-term storage resilience.