Western Digital 4TB WD Red Plus 5400 RPM SATA 6Gb/s Hard Drive (WD40EFPX)

The Western Digital 4TB WD Red Plus NAS Internal Hard Drive (Model Part Number: WD40EFPX) is a high-performance, 24/7 enterprise-grade storage drive engineered specifically for small-to-medium business (SMB) NAS environments, home office media servers, and multi-bay RAID arrays. Built exclusively with Conventional Magnetic Recording (CMR) technology and operating over a SATA 6Gb/s interface, this 3.5-inch drive delivers consistent read/write performance, low latency, and rapid data rebuilding capabilities across complex multi-drive pools.

Featuring an enlarged 256MB cache buffer and Western Digital's proprietary NASware 3.0 technology, the WD40EFPX seamlessly balances performance, power consumption, and thermal output while protecting data in high-vibration multi-bay NAS enclosures. Rated for workloads up to 180TB/year and an MTBF rating of 1 million hours, it incorporates 3D Active Balance Plus dual-plane balance control to prevent structural vibration and preserve long-term operational integrity.

Available from DataDive, your trusted Server Parts Distributor in Qatar, this original Western Digital enterprise hard drive is available in our Storage Supplier in Qatar, ideal for expanding 3.5-inch PowerEdge drive backplanes, building high-performance hardware RAID storage pools, replacing faulty drives in mission-critical server arrays, and upgrading enterprise infrastructure across supported Dell rack and tower servers.

Technical Specifications:

• Brand: Western Digital (WD Red Plus Series)

• Model Part Number: WD40EFPX

• Capacity: 4TB (4000GB)

• Recording Technology: CMR (Conventional Magnetic Recording)

• Rotational Speed: 5,400 RPM Class

• Interface: SATA 6Gb/s (SATA III)

• Form Factor: 3.5-inch Large Form Factor (LFF)

• Cache Buffer: 256 MB

• Workload Rating: 180TB / Year

• MTBF / Reliability: 1,000,000 Hours

• Firmware Optimization: NASware 3.0 Technology with 3D Active Balance Plus

System Compatibility List:

• NAS Enclosures & Expansion Units: Synology DiskStation / RackStation, QNAP Turbo NAS, ASUSTOR, TerraMaster, and Netgear ReadyNAS (1 to 8-bay arrays)

• Servers & PC Enclosures: Dell PowerEdge, HPE ProLiant, Lenovo ThinkSystem towers, and custom 3.5" SATA server enclosures