WD Red 4TB NAS Hard Drive WD40EFRX 5400RPM SATA 6Gb/s 3.5-inch

The Western Digital Red 4TB (WD40EFRX) is a 3.5-inch NAS-optimised hard disk drive built for continuous 24×7 operation in small-to-medium business and home NAS enclosures. Spinning at 5400 RPM with a 64MB cache and SATA 6Gb/s interface, it delivers the sustained sequential throughput and vibration tolerance demanded by always-on multi-drive NAS systems.

The drive is rated for up to 8-bay NAS configurations and a 180TB/year annual workload, reflecting its design for the continuous read/write duty cycles of shared network storage. It uses SMR (Shingled Magnetic Recording) recording, and Western Digital's NASware firmware optimises error recovery behaviour for RAID rebuilds, reducing the risk of drive dropout during array reconstruction. 3D Active Balance Plus minimises vibration in multi-drive bays.

Omnixon Global supplies the WD Red 4TB (WD40EFRX) for NAS deployments across the UAE, GCC, and MENA region. Ideal for SMB file sharing, media streaming vaults, backup targets, and surveillance recording archives where reliable CMR or SMR write semantics and NAS-optimised firmware are essential.

Ideal for

• Multi-bay NAS enclosures (up to 8 bays) running RAID 0/1/5/6/10 for shared file storage
• Continuous 24×7 network-attached storage serving small office file-share and collaboration workflows
• Home and SMB media server storing high-resolution video, photo archives, and music libraries
• Primary or secondary NAS volume for data backup targets using Time Machine or rsync workflows
• Always-on surveillance NAS recording streams from multiple IP cameras at moderate frame rates

Technical specifications

Available from Omnixon Global. Submit an RFQ and our team will confirm configuration and availability for your order.