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WD Red Pro 4TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive - WD4005FFB
- Available in capacities ranging from 2 to 26TB with support for NAS systems with up to 24 bays
- Supports up to 300TB/year workload rate
- Enhanced reliability with 3D Active Balance Plus technology and error recovery controls with NASware 3.0 technology
- Extended drive testing to ensure each drive is tested for extended reliable operation
- 5-year limited warranty
- Retail or OEM packing may vary
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Overview
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WD Red? Pro drives are engineered to handle high-intensity workloads in 24? 7 multi-user commercial and enterprise NAS environments. WD Red Pro drives deliver the performance, scalability and dependability businesses require to store, share and collaborate on large amounts of data in multi-bay RAID-optimized NAS systems.
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Limited Warranty period (parts): 5 years
- Limited Warranty period (labor): 5 years
- Read full details
Return Policies
- Return for refund within: 30 days
- Return for replacement within: 30 days
- This item is covered by Newegg.com's 30-Day Return Policy.
- Read full return policy for details.
Manufacturer Contact Info
- Manufacturer Website
- Support Phone: 1-800-275-4932
- Support Email: peter.kim@wdc.com
- Support Website
- View other products from Western Digital
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The WD Red Pro 4TB is a 3.5-inch, 7200 RPM CMR SATA hard drive for NAS users who need a drive designed for multi-bay systems, with support for NAS configurations of up to 24 bays and a workload rate of up to 300TB per year.
Recommended For
- Small-business or workgroup NAS operators sharing files, backups, and project data among multiple users who need storage designed for continuous NAS use.
- Administrators building or expanding multi-bay RAID NAS systems, including tower or rack-mount setups, where NAS-specific firmware and RAID-oriented error recovery are useful.
- NAS users with frequent, sustained data transfers or busier concurrent workloads who can make use of a 7200-RPM NAS drive rather than choosing storage mainly for quiet, light-duty home use.
- Organizations running always-on NAS storage for shared files, backups, or virtualization that want a drive positioned for heavier workloads than a typical desktop drive.
Real-World Use Scenarios
- In a multi-bay NAS used by a small office or busy household, store shared files that several people access throughout the day; the drive is designed for NAS workloads, while actual responsiveness also depends on the NAS and network.
- For a home Plex or media server, keep movies, shows, and music on a NAS and stream them to devices on the network; the drive provides file storage, while the server and network handle playback and transcoding.
- When building or expanding a RAID NAS, use the drive as one member of the storage array; RAID can help keep data available after certain drive failures, but it is not a substitute for a separate backup.
- For centralized home or office backups, keep computer files on a NAS so multiple devices can save to one location; maintain another copy elsewhere for protection against NAS or drive loss.
- In a NAS handling sustained file transfers alongside regular shared access, use the Red Pro as NAS storage; professional testing of an earlier 4TB Red Pro generation found it performed well in multi-drive NAS benchmarks, though results vary by NAS, array, and workload.
Spec Summary
| Attribute | Value |
|---|---|
| Best For | RAID-optimized NAS storage for business or personal use |
| Capacity And Recording | 4 TB mechanical hard drive using CMR recording |
| Interface And Form Factor | Internal 3.5-inch SATA 6.0 Gb/s drive |
| Speed And Cache | 7200 RPM with 256 MB cache and 267 MB/s read speed |
| Dimensions | 147 × 101.6 × 26.1 mm (length × width × height) |
| Model Identifiers | WD Red Pro; model WD4005FFBX (WD4005FFBX-SPCAUN0) |


















