---
product_id: 493355095
title: "Western Digital 4TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5\" -WD40EFPX"
brand: "western digital"
price: "$326"
currency: NZD
in_stock: true
url: https://www.desertcart.nz/products/493355095-western-digital-4tb-wd-red-plus-nas-internal-hard-drive
store_origin: NZ
region: New Zealand
---

# 5400 RPM power-efficient spin 4TB massive storage SATA 6 Gb/s ultra-fast interface Western Digital 4TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" -WD40EFPX

**Brand:** western digital
**Price:** $326
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your NAS game with storage that works as hard as you do!

## Quick Answers

- **What is this?** Western Digital 4TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" -WD40EFPX by western digital
- **How much does it cost?** $326 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/493355095-western-digital-4tb-wd-red-plus-nas-internal-hard-drive)

## Best For

- western digital enthusiasts

## Why This Product

- Trusted western digital brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **256 MB Cache Memory:** Turbocharged caching for smoother multitasking and faster access.
- • **Massive 4TB Capacity:** Store your entire digital empire without compromise.
- • **SATA 6 Gb/s Interface:** Seamless, high-speed data transfer that keeps your workflow uninterrupted.
- • **Optimized 5400 RPM Speed:** Balanced performance with whisper-quiet operation for 24/7 NAS use.
- • **NASware Firmware Compatibility:** Engineered for flawless integration and reliability in multi-bay NAS setups.

## Overview

The 4TB WD Red Plus NAS Internal Hard Drive (WD40EFPX) is a 3.5-inch mechanical HDD designed for professional-grade NAS environments. Featuring a 5400 RPM spin speed, SATA 6 Gb/s interface, and 256 MB cache, it delivers reliable, efficient storage with NASware firmware ensuring compatibility and durability. Ideal for multi-bay systems, it supports up to 180 TB/year workload, making it perfect for demanding data management and backup needs.

## Description

Buy Western Digital 4TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" -WD40EFPX online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

## Features

- Available in capacities ranging from 1-14TB with support for up to 8 bays
- Supports up to 180 TB/yr workload rate | Workload Rate is defined as the amount of user data transferred to or from the hard drive. Workload Rate is annualized (TB transferred (8760 / recorded power-on hours)). Workload Rate will vary depending on your hardware and software components and configurations.
- NASware firmware for compatibility

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Western Digital |
| Product Dimensions | 14.71 x 10.16 x 2.61 cm; 570 g |
| Item model number | WD40EFPX |
| Manufacturer | Western Digital |
| Series | WD Red Plus |
| Color | Red |
| Form Factor | 3.5-inch |
| Hard Drive Size | 4 TB |
| Hard Disk Description | Mechanical Hard Disk |
| Hard Drive Interface | Serial ATA-600 |
| Hard Disk Rotational Speed | 5400 RPM |
| Voltage | 1 Volts |
| Hardware Platform | x86_64 |
| Are Batteries Included | No |
| Lithium Battery Packaging | Batteries only |
| Lithium Battery Weight | 0.19 Grams |
| Number Of Lithium Ion Cells | 1 |
| Number of Lithium Metal Cells | 1 |
| Item Weight | 570 g |

## Product Details

- **Brand:** Western Digital
- **Colour:** Red
- **Compatible devices:** NAS System
- **Connectivity technology:** SATA
- **Digital storage capacity:** 4 TB
- **Hard disk description:** Mechanical Hard Disk
- **Hard disk form factor:** 3.5 Inches
- **Hard disk interface:** Serial ATA-600
- **Installation type:** Internal Hard Drive
- **Special features:** Portable

## Images

![Western Digital 4TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" -WD40EFPX - Image 1](https://m.media-amazon.com/images/I/81wgF5tXOJL.jpg)

## Questions & Answers

**Q: Is this WD Red drive backed by WD's 3-year limited warranty? I don't see it in the product description.**
A: I had an issue with some of the WD Red drives I had purchased through Amazon...
I had a failure and contacted WD for replacement under warranty...  
I was told that the drive I had only had a one year warranty period not the three year.
The drive serial number started with WD and that indicated it was a drive from a single disk NAS..  those have only a one year warranty
Where the other drives carry the 3 year.  
What is the difference in the drives i can not say or tell from looking at them and no other information was provided by WD.
I was told I needed to go back to the seller and see if they would fix the issue.
Since I've bought a number of drives over the last three years one at a time and registered them with WD, I didn't mark each drive and could not tell which drive came from what seller since the invoices didn't indicate the serial number of the drives..   I have 4 other drives in that situation. Since it was registered at the time I received the drive I know it was within the 3 years but after the 1 year warranty that WD would support.  I had to buy a replacement..  Thing is that all the drive were in WD boxes and sealed in static bags.

**Q: Can this drive be installed into an external HD case and used as a single drive media server or does it have to be installed in a NAS case?**
A: It's designed for continuous use and not intended to be shut down and restarted on a routine basis.  Those that say that they lack the performance of a desktop HD is just not true. they have similar performance characteristics with most 5200 RPM drives. One typically doesn't put a 4TB drive in a PC as a system drive. Usually, you would use a 1 TB drive that are typically 7200 RPM, which does provide better performance. If you really need that much space  in your PC (system or otherwise) you're better off not using a NAS drive, something like the Seagate Barracuda.

**Q: Why is this more expensive than an external wd 10 tb drive such as: https://www.amazon.com/s?k=wd+10tb+elements+desktop+usb+3.0+external+hard+drive&re**
A: The retail storage market is more competitive. NAS and Enterprise drives meet 24/7/365 read write reliability benchmarks and typically have a 3-5 year warranty. Retail consumer drives may in some cases last as long as NAS drives, but typically will have a shorter warranty. Note that liberating a hard drive from a retail external enclosure (to use in a PC) would likely void the drives warranty altogether.

**Q: Can this drive be used to replace the internal hard drive within the apple 3tb time capsule?**
A: Depends if it uses a 2.5in or 3.5inch drive or not. Specs are probably fine but need to know what size of hard drive it takes. Based on the dimensions of the apple device, it might accommodate this. Based on the apple dimensions, I would be surprised if it uses 3.5in drives but it isn't impossible.

## Frequently Bought Together

- Western Digital 4TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" -WD40EFPX
- Synology 2-Bay DiskStation DS224+ (Diskless)
- Seagate IronWolf 4TB NAS Internal Hard Drive CMR 3.5 Inch SATA 6Gb/s 5400 RPM 64MB Cache for RAID Network Attached Storage Rescue Services (ST4000VNZ06/006)

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-01-24*