4TB 5.4K RPM 64MB Cache 3.5" SATA 6Gb/s Hard Drive for Desktop / NAS / DVR / NVR / Surveillance Systems

Description

This 4TB 5.4K RPM 3.5" SATA hard drive is a compatible replacement for multiple Western Digital desktop, NAS, surveillance, DVR/NVR, backup, and general storage applications. These drives use the standard 3.5" SATA form factor and SATA 6Gb/s interface, making them a compatible replacement option for many desktop PCs, workstations, NAS systems, DVR/NVR recorders, surveillance systems, external enclosures, and storage expansion applications.

This drive family includes compatible 4TB SATA models commonly used across WD Purple surveillance drives, WD Red NAS drives, WD Green desktop drives, and WD Blue desktop storage drives.

What’s Included

• 1 x 4TB 3.5" SATA Hard Drive

Technical Specifications

• Storage Capacity: 4TB
• Form Factor: 3.5"
• Interface: SATA III 6Gb/s
• Backward Compatibility: SATA 3Gb/s / SATA 1.5Gb/s
• Rotational Speed: 5.4K RPM
• Cache: 64MB
• Drive Type: Internal hard drive
• Compatible Applications: Desktop / Workstation / NAS / DVR / NVR / Surveillance / Backup Storage / External Enclosure
• Supported Drive Bays: Standard 3.5" SATA hard drive bays

Interchangeable Part Numbers

WD40PURZ, WD40PURZ-85AKKY0, WD40PURZ-85TTDY0, WD40PURZ-74AKKY0, WD40PURX, WD40PURX-64GVNY0, WD40PURX-64N96Y0, WD40PURX-64NZ6Y0, WD40PURX-64AKYY0, WD43PURZ, WD43PURZ-74BWPY0, WD43PURZ-85BWPY0, WD40EFRX, WD40EFRX-68N32N0, WD40EFRX-68WT0N0, WD40EZRX, WD40EZRX-00SPEB0, WD40EZRX-11SPEB0, WD40EZRX-22SPEB0, WD40EZRX-00MVLB1, WD40EZRX-75SPEB0, 9G4C0, WD40EZRZ, WD40EZRZ-00WN9B0, WD40EZRZ-00GXCB0, WD40EZRZ-22GXCB0, WD40EZRZ-19GXCB0, WD40EZRZ-75GXCB0, 56RCV

Optional Add-On: External Enclosure

Need to use this 3.5" SATA hard drive externally? Add a compatible external enclosure below:

3.5" USB 2.0 SATA Hard Drive HDD External Enclosure Caddy Case

Important: 3.5" hard drives require a powered external enclosure. A standard USB-only 2.5" enclosure will not power this drive.

✅ Confirmed Compatibility

Please note that the following list is not exhaustive. Compatibility depends on your system’s specific configuration. It’s essential to verify compatibility with your system, storage controller, NAS, DVR/NVR, or motherboard manufacturer prior to installation.

✔️ Desktop PCs / Workstations: Compatible with systems that support standard 3.5" SATA hard drives and 4TB capacity
✔️ Tower / Small Business Workstations: Compatible with many tower and workstation systems using standard 3.5" SATA hard drive bays
✔️ HP Desktop / Workstation Systems: Compatible with many EliteDesk, ProDesk, Z Workstation, and tower systems using 3.5" SATA hard drives
✔️ Lenovo Desktop / Workstation Systems: Compatible with many ThinkCentre, ThinkStation, and tower systems using 3.5" SATA hard drives
✔️ NAS Systems: Compatible with many Synology, QNAP, ASUSTOR, TerraMaster, Buffalo, Netgear ReadyNAS, and other NAS systems that support 4TB 3.5" SATA drives
✔️ DVR / NVR Surveillance Systems: Compatible with many Hikvision, Dahua, Lorex, Amcrest, Swann, Night Owl, Reolink, and other DVR/NVR systems that support 4TB 3.5" SATA hard drives
✔️ Multi-Bay Storage Systems: Compatible with many 2-bay, 4-bay, 6-bay, and 8-bay SATA storage systems that support 4TB 3.5" drives
✔️ Server / Storage Systems: Compatible with many systems using 3.5" SATA drive bays, SATA controllers, or SAS controllers that support SATA hard drives
✔️ External Storage: Compatible with powered 3.5" SATA USB enclosures, docking stations, and external hard drive adapters

Key Features

☑️ 4TB high-capacity storage for desktop, NAS, DVR, NVR, and backup use
☑️ 5.4K RPM rotational speed for cool, efficient storage operation
☑️ 64MB cache for reliable everyday storage performance
☑️ Standard 3.5" SATA form factor
☑️ SATA 6Gb/s interface for broad system compatibility
☑️ Backward compatible with SATA 3Gb/s and SATA 1.5Gb/s systems
☑️ Compatible with many desktop, NAS, surveillance, DVR, NVR, and external storage applications
☑️ Works with many PCs, workstations, servers, NAS units, DVRs, NVRs, and external enclosures
☑️ Ideal for data storage, surveillance recording, media libraries, backup drives, and system repairs

Compatible Use Cases

✔️ Desktop storage upgrade
✔️ Workstation storage replacement
✔️ NAS storage expansion
✔️ RAID storage replacement
✔️ DVR / NVR video recording
✔️ Surveillance camera storage
✔️ Backup drive replacement
✔️ External USB hard drive setup
✔️ Media storage
✔️ Large file storage
✔️ Multi-bay storage replacement
✔️ Home office and small business storage

Fit Notes

• This is a 3.5" SATA hard drive and will not fit 2.5" laptop-only drive bays without the proper adapter or mounting hardware.
• For older systems, verify that your BIOS, operating system, and storage controller support 4TB drives.
• 4TB drives may require GPT formatting instead of MBR to use the full capacity.
• For RAID, NAS, DVR, and NVR systems, matching the original drive type is recommended when possible.
• SATA drives can work in many SAS backplanes, but system/controller compatibility should be verified before ordering.
• This drive is not compatible with IDE/PATA systems.
• This drive is not compatible with 2.5" USB-only enclosures that do not include external power.