Western Digital 14TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 512 MB Cache, 3.5" -WD142KFGX
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AI Verdict
This 14TB, 7200 RPM, CMR, 512MB cache HDD is for power users and medium businesses needing high-intensity 24x7 NAS storage with unlimited bay support.
This drive is a strong fit for its intended use in high-demand NAS environments, offering 14TB of CMR storage with a 7200 RPM speed and a 550TB/yr workload rating. It's built for 24x7 operation and extensive NAS compatibility.
If you need even higher performance or a longer warranty, look for enterprise-class drives with 5-year warranties and potentially higher sustained transfer rates.
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Pros
- Offers 14TB capacity, suitable for rapidly growing data needs in NAS systems [Product Data].
- Features a 7200 RPM spindle speed and 512MB cache for faster data access compared to slower NAS drives [Product Data].
- Engineered for 24x7 operation in multi-user NAS environments, rated for 550TB/yr workload [Product Data, cite: 9].
- Utilizes CMR technology, avoiding the performance inconsistencies associated with SMR drives [Product Data, cite: 4].
- Extensively tested for compatibility with a wide range of NAS enclosures [Product Data].
- Designed for RAID-optimized NAS systems with an unlimited number of bays [Product Data].
Cons
- Some users report a 'new noise / thump' from Preventive Wear Leveling (PWL) that can be unexpected.
- Usable capacity is less than the advertised 14TB (e.g., 12.73TB) due to standard storage calculation differences.
- May be louder than some other NAS drives due to its performance tuning, as noted in comparisons with WD Red Plus.
- The 3.5-inch form factor requires specific NAS bay compatibility and is not suitable for smaller enclosures.
Dimension Scores
The 7200 RPM spindle speed and 512MB cache provide above-average sequential read/write performance for a mechanical HDD, suitable for multi-user access [Product Data, cite: 9].
Rated for a 550TB/yr workload and designed for 24x7 operation in demanding NAS environments, indicating high durability and a low failure rate for its class [Product Data, cite: 9].
14TB is a substantial capacity, fitting well for power users and businesses with rapidly expanding data storage needs in a NAS [Product Data].
Extensive testing with numerous NAS vendors and its standard 3.5-inch SATA 6 Gb/s interface ensure broad compatibility with most NAS enclosures and systems [Product Data].
Best For
- Medium-sized businesses requiring high-capacity, always-on data storage.
- Power users building or expanding a multi-bay, RAID-optimized NAS for archiving and sharing.
- Environments with high-intensity workloads and multiple concurrent users accessing data.
- Users needing a drive with a high workload rating (550TB/yr) for demanding applications [Product Data, cite: 9].
Not Recommended For
- Users sensitive to drive noise in quiet home office setups.
- Budget-conscious buyers who don't require the 550TB/yr workload rate or 7200 RPM performance.
- Single-bay or low-bay NAS systems where the 'Pro' features might be overkill.
- Systems requiring a smaller than 3.5-inch form factor.
Watch Out For
- Expect the drive to report around 12.73TB of usable space, not a full 14TB, due to how operating systems calculate storage.
- A 'thumping' or 'new noise' might occur from the drive's Preventive Wear Leveling (PWL) feature, which is normal operation but can be alarming if unexpected.
- While generally reliable, some users have noted that the Red Pro series, like enterprise drives, prioritizes performance over absolute quietness, potentially leading to more audible operation than consumer-grade drives.
Full Specifications
| ASIN | B0CD2XBZWR |
| Brand | WD |
| Color | Red |
| Series | WD Red Pro HDD |
| Language | French |
| Batteries | 1 AAAA batteries required. |
| Hard Drive | 14 TB Mechanical Hard Disk |
| Item Weight | 15.8 ounces |
| Manufacturer | Western Digital Technologies, Inc. |
| Special Feature | Built for NAS |
| Flash Memory Size | 2 TB |
| Installation Type | Internal Hard Drive |
| Item model number | WD142KFGX |
| Compatible Devices | Nas Enclosure |
| Product Dimensions | 5.79 x 4 x 1.03 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 | 5.79 x 4 x 1.03 inches |
| Connectivity Technology | SATA |
| Digital Storage Capacity | 14 TB |
| Hard Drive Rotational Speed | 7200 RPM |
| Is Discontinued By Manufacturer | No |
What Buyers Say
This 14TB WD Red Pro drive often gets a thumbs-up for its overall reliability and suitability as a NAS upgrade, with some users specifically noting its quiet operation compared to other NAS drives. However, a recurring point of discussion is the audible 'thump' or 'new noise' attributed to the drive's Preventive Wear Leveling (PWL) feature, which can initially concern users who aren't expecting it. Another common observation is the actual formatted capacity being less than the advertised 14TB, which is standard for hard drives but still surprises some buyers.
“Man, this drive is solid for my Plex server, but that weird thump it makes sometimes had me thinking it was dying for a week straight! Turns out it's just doing its thing, but seriously, WD, a heads-up would be nice. Still, 12.73TB of actual space is a lot, so I'm not complaining too much.”
Common Praise
- Functions without issues in NAS systems, providing a reliable storage solution.
- Offers a significant storage upgrade for existing NAS setups.
- Some users find it quieter than other NAS drives they've used.
- Performs as expected for a 7200 RPM drive in a NAS environment.
Common Complaints
- Produces a distinct 'thump' or 'new noise' due to Preventive Wear Leveling (PWL) that can be mistaken for a defect.
- The actual usable capacity is closer to 12.73TB, not the full 14TB, after formatting.
- Can be more expensive than WD Red Plus or other non-Pro alternatives.
Ownership Tips
- The 'thumping' noise from PWL is a characteristic of the drive and not an indication of failure, though it can be startling at first.
- The drive maintains consistent performance even under heavy, continuous data access in a multi-user NAS environment.
- Actual power consumption might be slightly higher than lower RPM or SMR drives due to its 7200 RPM speed and Pro designation.
- The drive runs at a temperature consistent with other 7200 RPM NAS drives, requiring adequate NAS cooling.
Frequently Asked Questions
Is this drive suitable for a desktop PC?
While technically compatible via its SATA 6 Gb/s interface, this drive is optimized for 24x7 NAS environments and its features like high workload rating are overkill for most desktop uses. You might find a quieter, less expensive drive for a desktop.
What does 'CMR' mean and why is it important?
CMR stands for Conventional Magnetic Recording. It's important because it offers consistent performance, especially in RAID arrays and NAS systems, unlike SMR (Shingled Magnetic Recording) drives which can experience significant slowdowns during heavy write operations.
Will this drive make a lot of noise?
Some users have reported a 'thumping' noise due to a feature called Preventive Wear Leveling. While designed for performance in a NAS, it might be more audible than some quieter, lower-performance drives, especially if your NAS is in a living area.
What is the actual usable capacity of the 14TB drive?
Due to differences in how manufacturers and operating systems calculate storage, a 14TB drive will typically show around 12.73TB of usable space once formatted.
Is this drive compatible with my NAS?
Western Digital states they partner with a wide range of NAS system vendors for extensive testing to ensure compatibility with most NAS enclosures [Product Data]. It's designed for RAID-optimized systems with an unlimited number of bays.
Buying Guide
When buying a NAS hard drive, you're not just looking for raw capacity; you need a drive built for constant operation and data integrity. Think about how many people will access your data, how often, and what kind of data it is. A drive like this Red Pro is designed to handle being spun up 24/7 and accessed by multiple users without breaking a sweat, which is different from a desktop drive that's mostly idle.
CMR (Conventional Magnetic Recording)
This is how the drive writes data. CMR writes data tracks side-by-side, which means consistent performance, especially when writing large files or in a RAID array. SMR (Shingled Magnetic Recording) overlaps tracks, which can slow down significantly during heavy writes, making it less ideal for NAS.
7200 RPM
This is the speed at which the platters spin. Higher RPM generally means faster data access and transfer speeds, which is crucial for multi-user environments or applications that demand quick file retrieval, like streaming high-resolution media from your NAS.
550TB/yr Workload Rate
This number tells you how much data the drive is designed to read and write in a year. A 550TB/yr rating is very high, indicating this drive is built for heavy use in busy NAS systems, not just occasional backups. It's a measure of its endurance under constant stress.
512MB Cache
The cache acts as a small, super-fast buffer for data. A larger cache (like 512MB here) helps improve performance by temporarily storing frequently accessed data, making reads and writes feel snappier, especially when handling many small files or concurrent requests.
Alternatives
If this drive is overkill, look for NAS drives with a lower workload rating (e.g., 180TB/yr), potentially 5400 RPM or 5900 RPM for quieter operation and lower cost, but ensure they still use CMR technology for consistent performance.
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