Western Digital 24TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 512 MB Cache, 3.5" - WD240KFGX
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AI Verdict
A 24TB, 7200 RPM, CMR drive engineered for continuous, high-intensity data storage in multi-bay NAS environments.
This 24TB, 7200 RPM, CMR drive is purpose-built for demanding 24x7 multi-user NAS environments, featuring a 550TB/yr workload rating and a 5-year warranty. Its high capacity and performance are specifically tailored for commercial and enterprise-level data storage, making it a solid choice for its intended use.
If 24TB is overkill or your budget is tighter, consider lower capacity WD Red Pro models or WD Red Plus drives for less intensive home NAS use.
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Pros
- Offers a substantial 24TB storage capacity, among the highest available for internal HDDs.
- Features a 7200 RPM spindle speed, providing strong performance for a mechanical drive.
- Utilizes CMR (Conventional Magnetic Recording) technology, preferred for consistent performance in RAID arrays.
- Equipped with a 512 MB cache, aiding in faster data access and transfer speeds.
- Rated for a 550TB/yr workload, indicating high durability for demanding 24x7 operations.
- Comes with a 5-year limited warranty, reflecting manufacturer confidence in its longevity.
Cons
- Users report the drive is slightly noisier than WD Red Plus drives, which might be noticeable in quiet environments.
- Can generate significant heat, similar to Ultrastar drives, requiring adequate cooling in NAS enclosures.
- The 512MB cache size is considered modest by some users for a 24TB enterprise-grade drive at this price point.
- Some buyers experienced initial warranty registration issues, with the website sometimes showing 3 years instead of the advertised 5 years.
- The price point is high, costing more than some competing 24TB drives like Seagate IronWolf Pro or Exos.
Dimension Scores
With a 7200 RPM spindle speed and transfer rates up to 287 MB/s, it offers above-average performance for a mechanical hard drive.
Rated for a 550TB/yr workload and 2.5 million hours MTBF, it's engineered for continuous 24x7 operation in demanding environments.
At 24TB, it offers best-in-class storage capacity for a 3.5-inch internal HDD, maximizing storage density.
Specifically engineered for NAS systems and extensively tested with various NAS enclosures, ensuring broad integration.
Best For
- Large-scale data storage in multi-bay NAS systems requiring maximum capacity.
- Commercial and enterprise NAS environments demanding 24x7 operation and high data availability.
- RAID-optimized systems with an unlimited number of bays for data redundancy and performance.
- High-intensity multi-user data access scenarios where consistent performance is critical.
Not Recommended For
- Single-drive desktop PC use, as its optimization for NAS may lead to higher noise and heat than typical desktop drives.
- Budget-conscious home users with minimal storage needs who don't require enterprise-grade features.
- Users prioritizing absolute silence in their computing environment due to reported noise levels.
Watch Out For
- Warranty registration can be a hassle; some users reported needing to submit photos and invoices to Western Digital to correct the warranty period from 3 to 5 years.
- The drive can be noticeably louder than other consumer-grade drives, which might be an issue if your NAS is in a living area.
- It runs warm, similar to Ultrastar drives, so your NAS enclosure needs robust cooling to maintain optimal operating temperatures.
- At a reference price range of $600+, the initial investment for a multi-drive array can be substantial, making it a serious financial commitment.
- Some users feel the 512MB cache is insufficient for a 24TB drive in this premium category, potentially impacting performance in specific workloads.
Full Specifications
| ASIN | B0D24TQK3Q |
| Brand | WD |
| Color | Red |
| Series | WD Red Pro |
| Hard Drive | 24 TB Mechanical Hard Disk |
| Item Weight | 1.47 pounds |
| Manufacturer | Western Digital Technologies, Inc. |
| Special Feature | For RAID-optimized NAS system |
| Flash Memory Size | 2 TB |
| Hardware Platform | WD |
| Installation Type | Internal Hard Drive |
| Item model number | WD240KFGX-SPCJNN0 |
| Compatible Devices | Network Attached Storage |
| Product Dimensions | 5.8 x 4 x 1 inches |
| Hard Disk Interface | Serial ATA-600 |
| Hard Drive Interface | Serial ATA-600 |
| Hard Disk Description | Mechanical Hard Disk |
| Hard Disk Form Factor | 3.5 Inches |
| Item Dimensions LxWxH | 5.8 x 4 x 1 inches |
| Connectivity Technology | SATA |
| Digital Storage Capacity | 24 TB |
| Hard Drive Rotational Speed | 7200 RPM |
What Buyers Say
Many users are grabbing this 24TB drive for its sheer capacity in new NAS builds, often in RAID setups. While the massive storage is a huge draw, some buyers have pointed out it's a bit louder than other Red series drives and can run quite warm, so you'll need good ventilation in your NAS. The 5-year warranty is a definite plus, but getting it correctly registered with WD sometimes needs a bit of extra effort.
“Needed huge storage for my Plex server, this 24TB drive delivers, but man, it's not quiet and my NAS fans are working overtime to keep it cool, hope that 5-year warranty actually holds up without a fight.”
Common Praise
- Provides a huge 24TB of storage capacity, perfect for consolidating large data archives.
- Offers strong read and write speeds for a mechanical drive, reaching up to 287 MB/s.
- Designed for continuous 24x7 operation, making it suitable for always-on NAS systems.
- Comes with a 5-year limited warranty, providing peace of mind for long-term use.
- Uses CMR technology, which is crucial for stable performance and data integrity in RAID arrays.
Common Complaints
- Can be noticeably noisier than other WD Red or Red Plus drives, which might be an issue in a home office.
- Generates significant heat, requiring robust cooling solutions within the NAS enclosure to prevent overheating.
- The 512MB cache size is considered small by some users for a 24TB enterprise-grade drive, potentially limiting burst performance.
- Initial warranty registration sometimes defaults to 3 years instead of the advertised 5 years, requiring users to contact support with proof of purchase.
- The high price point is a significant barrier for many, especially when purchasing multiple drives for a RAID setup.
Ownership Tips
- The drive's operational noise becomes more apparent in quieter home environments compared to a dedicated server rack.
- Monitoring drive temperatures is crucial, especially in densely packed NAS enclosures, to ensure longevity.
- Verifying the warranty status immediately after purchase on WD's website and having proof of purchase ready is a common recommendation.
- The sheer capacity means initial data transfers or RAID rebuilds can take a very long time.
- Some users noted that the drive's weight (1.47 lb) is substantial, which is a minor consideration for portable solutions, though it's designed for stationary use.
Frequently Asked Questions
Is this an SMR or CMR drive?
This is a CMR (Conventional Magnetic Recording) drive, which is generally preferred for NAS environments due to its consistent performance and reliability in RAID arrays.
What is the rotational speed of this drive?
The drive operates at 7200 RPM, contributing to its performance in high-demand NAS systems.
What is the warranty period for the WD Red Pro 24TB?
Western Digital provides a 5-year limited warranty for the WD Red Pro series, ensuring long-term support.
Can I use this drive in a desktop computer?
While technically possible, this drive is optimized for continuous 24x7 operation in NAS systems and might be louder or run warmer than typical desktop drives.
What does the 550TB/yr workload rate mean?
This rating indicates the maximum amount of data the drive is designed to handle transferring annually, making it suitable for high-intensity, multi-user environments.
Is this drive compatible with my NAS enclosure?
Western Digital partners with a wide range of NAS system vendors for extensive testing to ensure broad compatibility with most NAS enclosures.
Buying Guide
When you're looking at hard drives for a Network Attached Storage (NAS) system, you're not just buying storage; you're buying a component that needs to run constantly and reliably. You need to think about how much data you'll store, how many people will access it, and how often. Drives like this one are built for heavy lifting, not just occasional backups, so consider your usage patterns carefully.
Capacity (24 TB)
This is simply how much data the drive can hold. Think of it like the size of a storage locker; 24TB is a massive locker, enough for thousands of movies or millions of photos, giving you ample space for extensive data archives.
RPM (7200)
Revolutions Per Minute tells you how fast the platters inside the drive spin. Higher RPMs generally mean faster data access and transfer speeds, like a faster car getting you to your destination quicker, which is important for responsive NAS performance.
CMR (Conventional Magnetic Recording)
This refers to how data is written to the disk. CMR drives write data without overlapping tracks, which is crucial for consistent performance and reliability, especially in RAID arrays where data is constantly being written and rewritten. It's like writing neatly in a notebook, leaving clear space between lines.
Workload Rate (550TB/yr)
This spec tells you how much data the drive is designed to read and write annually without premature failure. It's like a durability rating for how much work the drive can do in a year; 550TB is a lot of work, suitable for busy environments with continuous data demands.
Alternatives
If you need less capacity or a more budget-friendly option, look for drives with lower TB ratings or consider models from the 'Red Plus' series, which are still CMR but designed for less intensive home NAS use with fewer drive bays.
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