--- product_id: 511610323 title: "4TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5\" -WD40EFPX | 5400 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5\" - WD40EFPX" brand: "wd" price: "$529.89" currency: USD in_stock: true reviews_count: 13 category: "Wd" url: https://www.desertcart.us/products/511610323-4tb-wd-red-plus-nas-internal-hard-drive-hdd-5400 store_origin: US region: United States of America --- # 5400 RPM optimized speed 4TB massive storage SATA 6 Gb/s ultra-fast interface 4TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" -WD40EFPX | 5400 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD40EFPX **Brand:** wd **Price:** $529.89 **Availability:** ✅ In Stock ## Summary > 🚀 Elevate your NAS game with WD Red Plus — storage that works as hard as you do! ## Quick Answers - **What is this?** 4TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" -WD40EFPX | 5400 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD40EFPX by wd - **How much does it cost?** $529.89 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/511610323-4tb-wd-red-plus-nas-internal-hard-drive-hdd-5400) ## Best For - wd enthusiasts ## Why This Product - Trusted wd brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Generous 256MB Cache:** Boosts data throughput for smoother file transfers and faster access to your critical business files. - • **NAS-Optimized Reliability:** Specifically tested for seamless NAS compatibility, ensuring your data stays safe and accessible in multi-bay environments. - • **Versatile 3.5" Form Factor:** Fits perfectly into home office and medium business NAS setups with up to 8 bays, scaling with your growing data needs. - • **RAID Error Recovery Control:** Built-in error recovery reduces drive failures, giving your RAID arrays the resilience they deserve. - • **Whisper-Quiet Multi-Drive Performance:** Engineered with noise and vibration protection to keep your workspace calm and your system stable. ## Overview The Western Digital 4TB WD Red Plus NAS Internal Hard Drive (WD40EFPX) is a 3.5-inch mechanical HDD designed specifically for NAS systems up to 8 bays. Featuring a 5400 RPM spindle speed, SATA 6 Gb/s interface, and 256 MB cache, it delivers reliable, quiet, and efficient performance with RAID error recovery controls to minimize failures. Ideal for home offices and medium-sized businesses, it offers robust compatibility and optimized data protection for critical storage needs. ## Description Packed with power to handle NAS environments in home offices up to medium-sized businesses, WD Red Plus is ideal for helping protect, archive, and share valuable data in NAS systems with up to 8 bays. WD Red Plus NAS drives give you the flexibility, versatility, and confidence you need for your important home and work files. Review: Perfect fit for my wd cloud ex2 ultra - Good Review: Great service WD - Good ## Features - Compatibility: Unlike desktop drives, these drives are specifically tested for compatibility with NAS systems for optimum performance. - Error Recovery Controls: WD Red Plus NAS hard drives are specifically designed with RAID error recovery control to help reduce failures within the NAS system. - Noise and Vibration Protection: Designed to operate solo, desktop drives typically offer little or no protection from the noise and vibration present in a multi-drive system. WD Red Plus drives are designed to thrive in multi-bay NAS system environments. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BDXSK2K7 | | Best Sellers Rank | #10,727 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #22 in Internal Hard Drives | | Brand | WD | | Brand Name | WD | | Cache Memory Installed Size | 4 | | Color | Red | | Compatible Devices | Desktop, NAS | | Connectivity Technology | SATA | | Country of Origin | China | | Customer Reviews | 4.4 out of 5 stars 2,051 Reviews | | Digital Storage Capacity | 4 TB | | Form Factor | 3.5-inch | | Global Trade Identification Number | 00718037899794 | | Hard Disk Description | Mechanical Hard Disk | | Hard Disk Form Factor | 3.5 Inches | | Hard Disk Interface | SATA 6 GB/s | | Hard Disk Rotational Speed | 5400 RPM | | Hard Disk Type | Mechanical Hard Disk | | Hard-Drive Size | 4 TB | | Hardware Connectivity | SATA 6.0 Gb/s | | Installation Type | Internal Hard Drive | | Item Weight | 570 Grams | | Manufacturer Part Number | WD40EFPX | | Model Name | WD Red Plus | | Model Number | WD40EFPX | | Network Connectivity Technology | SATA | | Read Speed | 150 Megabytes Per Second | | Specific Uses For Product | Business | | UPC | 718037899794 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Western Digital - **Colour:** Red - **Compatible Devices:** Desktop, NAS - **Connectivity Technology:** SATA - **Digital Storage Capacity:** 4 TB - **Hard Disk Description:** Mechanical Hard Disk - **Hard Disk Form Factor:** 3.5 Inches - **Hard Disk Interface:** SATA 6 GB/s - **Installation Type:** Internal Hard Drive - **Special Feature:** Data Recovery Service ## Images ![4TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" -WD40EFPX | 5400 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD40EFPX - Image 1](https://m.media-amazon.com/images/I/81wgF5tXOJL.jpg) ![4TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" -WD40EFPX | 5400 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD40EFPX - Image 2](https://m.media-amazon.com/images/I/418+NU4w0gL.jpg) ![4TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" -WD40EFPX | 5400 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD40EFPX - Image 3](https://m.media-amazon.com/images/I/71R1j+fDkgL.jpg) ![4TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" -WD40EFPX | 5400 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD40EFPX - Image 4](https://m.media-amazon.com/images/I/813O9B7PBUL.jpg) ![4TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" -WD40EFPX | 5400 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD40EFPX - Image 5](https://m.media-amazon.com/images/I/91LOX0pJJhL.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. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect fit for my wd cloud ex2 ultra *by G***I on 3 September 2025* Good ### ⭐⭐⭐⭐⭐ Great service WD *by P***A on 20 September 2023* Good ### ⭐ DEFECTIVE PRODUCT *by A***T on 25 January 2024* I am writing to express my extreme disappointment with the recent purchase of a WD NAS 4TB HDD from your store on Amazon. Unfortunately, the product I received was defective, and my overall experience has been nothing short of frustrating. I feel it is essential to inform potential buyers about my negative experience to prevent others from facing similar issues. I strongly advise against purchasing from your store and will be sharing my experience on other platforms to raise awareness. I urge you to take immediate action to improve the quality of your products and the level of customer service provided. Customers deserve transparency and reliability, and my experience with your store has fallen short on both fronts. I hope this feedback serves as a wake-up call for your business to address these issues promptly. ## 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) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/511610323-4tb-wd-red-plus-nas-internal-hard-drive-hdd-5400](https://www.desertcart.us/products/511610323-4tb-wd-red-plus-nas-internal-hard-drive-hdd-5400) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-27*