---
product_id: 311711819
title: "Western Digital 18TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5\" - WD181KFGX"
brand: "western digital"
price: "€ 500.01"
currency: EUR
in_stock: true
url: https://www.desertcart.ie/products/311711819-western-digital-18tb-wd-red-pro-nas-internal-hard-drive
store_origin: IE
region: Ireland
---

# 7200 RPM high-speed performance 18TB massive storage SATA 6 Gb/s ultra-fast interface Western Digital 18TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD181KFGX

**Brand:** western digital
**Price:** € 500.01
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your NAS game with powerhouse storage that never quits!

## Quick Answers

- **What is this?** Western Digital 18TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD181KFGX by western digital
- **How much does it cost?** € 500.01 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/311711819-western-digital-18tb-wd-red-pro-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:** Boosts efficiency for heavy multitasking and RAID rebuilds.
- • **7200 RPM Speed:** Experience lightning-fast data access and transfer.
- • **Massive 18TB Capacity:** Store your entire digital empire without compromise.
- • **SATA 6 Gb/s Interface:** Seamless integration with next-gen NAS setups.
- • **Built for 24/7 NAS Workloads:** Engineered to keep your business running non-stop.

## Overview

The Western Digital 18TB WD Red Pro NAS Internal Hard Drive is a 3.5-inch mechanical HDD designed for medium to large-scale business NAS systems. Featuring a robust 7200 RPM spindle speed, SATA 6 Gb/s interface, and a 256 MB cache, it delivers high-speed, reliable performance optimized for 24/7 operation and RAID environments. Perfect for seamless file sharing, archiving, and intensive workloads, this drive ensures your data infrastructure stays fast, secure, and scalable.

## Description

18TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD181KFGX

## Features

- RDX Racedesign
- Ready made for Hyundai i30
- Made of highworthy ABS plastics

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Western Digital |
| Product Dimensions | 22.86 x 15.24 x 7.62 cm; 521.63 g |
| Batteries | 1 AAAA batteries required. |
| Item model number | WD181KFGX-SPAFPN0 |
| Manufacturer | Western Digital |
| Series | Western Digital |
| Color | Red |
| Form Factor | 3.5-inch |
| Hard Drive Size | 18 TB |
| Hard Disk Description | Mechanical Hard Disk |
| Hard Drive Interface | Serial ATA-600 |
| Hard Disk Rotational Speed | 7200 RPM |
| Graphics Card Description | Dedicated |
| Number of USB 2.0 Ports | 1 |
| Wattage | 50 |
| Hardware Platform | PC |
| Operating System | Standard |
| Are Batteries Included | No |
| Lithium Battery Energy Content | 2.6 British Thermal Units (BTUs) |
| Lithium Battery Packaging | Batteries contained in equipment |
| Lithium Battery Weight | 0.5 Milligrams |
| Number Of Lithium Ion Cells | 7 |
| Number of Lithium Metal Cells | 7 |
| Item Weight | 521 g |

## Product Details

- **Digital storage capacity:** 18 TB
- **Hard disk interface:** Serial ATA-600
- **Connectivity technology:** SATA
- **Brand:** Western Digital
- **Special features:** Data Recovery Service
- **Hard disk form factor:** 3.5 Inches
- **Hard disk description:** Mechanical Hard Disk
- **Compatible devices:** Desktop PC, Storage System
- **Installation type:** Internal Hard Drive
- **Colour:** Red

## Images

![Western Digital 18TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD181KFGX - Image 1](https://m.media-amazon.com/images/I/61+spJ-LcBL.jpg)

## Available Options

This product comes in different **Capacity, Pattern Name** options.

## Questions & Answers

**Q: 4 of these drives good for 32tb 24/7 dlna nas server? Don’t want to beat a dead horse here... Really it’s just to stream my 10Bit 4K movies using DLNA**
A: It all depends on what size and what RAID configuration you are asking about.  Most people would be using RAID 5 or something like Synology's SHR (similar to RAID 5 but doesn't require equal size hard drives) for this purpose. If you are thinking that 4x8TB will give you 32TB of storage that is not correct in RAID 5 because of the overhead used for data protection.  It works like this for RAID 5, 4x8TB = 24TB storage, 4x10TB = 30TB storage, 4x12 = 36TB storage.  So first determine which RAID configuration works best for you and then find a RAID calculator available online to choose your RAID configuration and hard drive size.  If you just want speed, with no parity checking then you could go with 4x8TB or 2x16 TB (whichever is cheaper) in RAID 0 for 32TB of storage but file corruption could be an issue and there is a possibility that you can only do 2 hard drives in RAID depending on your hardware.
Having said all that, these drives will certainly stream 4k 10-bit HDR movies over DLNA.  Streaming 4k is just as much up to the software and hardware of your computer than it is the hard drives.  A nicely configured Windows machine, for example, may stream them fine however a less powerful NAS device may not.  There are a lot of moving parts but these drives will not be an issue.  There are also issues with playing the 265 codecs in Windows 10 Media Player but the same files that will not play in Media Player, will stream via DLNA to my LG TV just fine and play in full 2160p HDR with no problem.  These same files will show up fine in my 9 year old NAS but will not stream via DLNA on it but photos stream fine.  So it all depends on your exact configuration.  But the drives are fine.
If it all gets too hard then just get a fast (say 400 MB per second) USB stick and copy 10 movies at a time on to it and plug it into your TV.  The Samsung BAR Plus 256 GB works well for this in my experience.  You can also look into getting streaming server software on your computer and a client connected to your TV.

**Q: What is the difference between this and the WD Black drive?**
A: The Red is engineered for 24/7 usage.  The Black is not.

**Q: Is the red wd drives better for cctv/nvr in raid setup than the purple drives? i hear purple drives are not lasting long. both red and purple are 24/7**
A: I use my purple drives with 9 cameras 24 x 7 and have over three years without a single failure.  pretty good if you ask me.

**Q: Can I use this as an external storage for my desktop?**
A: I have four of the earlier 3tB versions of this drive in external USB3 enclosures and use them in rotation for critical full system backups. They have served very well in that capacity. I also have one of the 3tB drives in my main daily-driver computer now and it does that quite well although it isn't as fast as some but since it is used mostly for secondary data store it doesn't matter so much. The reason that I have so many of the older 3tB drives is that I upgraded all of the drives in my Drobo NAS to 6tB drives a while back. Those drives as well as five of the 8tB units in another NAS have worked perfectly so I can highly recommend them (for the proper use, of course).

## Frequently Bought Together

- Western Digital 18TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 512 MB Cache, 3.5" - WD181KFGX
- SAMSUNG 990 PRO SSD NVMe M.2 PCIe Gen4, M.2 2280 Internal Solid State Hard Drive, Seq. Read Speeds Up to 7,450 MB/s for High End Computing, Gaming, and Heavy Duty Workstations, MZ-V9P2T0B/AM

---

## 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.ie/products/311711819-western-digital-18tb-wd-red-pro-nas-internal-hard-drive](https://www.desertcart.ie/products/311711819-western-digital-18tb-wd-red-pro-nas-internal-hard-drive)

---

*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-07*