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WD Red 4TB NAS Internal Hard Drive – 5400 RPM Class, SATA 6Gb/s, SMR, 256MB Cache, 3.5″ – WD40EFAX

The WD Red 4TB NAS Internal Hard Drive (WD40EFAX) is specifically engineered for network-attached storage systems, delivering reliable 24/7 operation with its 5400 RPM speed and SATA 6Gb/s interface. This 3.5-inch drive features 256MB cache for enhanced performance and utilizes Shingled Magnetic Recording (SMR) technology to maximize storage density. Built for small to medium NAS environments, it offers excellent compatibility with popular NAS brands, reduced vibration and noise levels, and WD’s proven reliability for continuous operation. The drive is optimized for streaming, file sharing, and backup applications, making it an ideal choice for home offices, creative professionals, and small businesses seeking dependable, high-capacity storage that can handle multiple users and always-on accessibility requirements.

Quote5 pcs(MOQ)

Premium Client Discounts Available

InterfaceSATA 6.0Gb/s
Capacity4TB
Form Factor3.5"
ApplicationNAS
BrandWestern Digital
Interface

SATA 6.0Gb/s

Capacity

4TB

Form Factor

3.5"

Application

NAS

Brand

Western Digital

Width (maximum)

101.60mm

Usage

For NAS systems

Recording Technology

SMR

Length (maximum)

147.00mm

Cache

256MB

Height (maximum)

26.10mm

Products Status

New

RPM

5400 RPM

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