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Western Digital 10TB WD Red Plus NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 GB/s, CMR, 512 MB Cache, 3.5" - WD100EFGX
WD

Western Digital 10TB WD Red Plus NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 GB/s, CMR, 512 MB Cache, 3.5" - WD100EFGX

4.5(9.3K+ reviews, all variants)
Amazon's Choicemid range$150-$299500+ bought in past month
#5 in Internal Hard Drives
capacity
10 TB
interface
Serial ATA-600
compatible
Desktop
drive type
Mechanical Hard Disk
form factor
3.5 Inches

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Our AI advisor analyzes real-time pricing across all channels to find you the best deal.

AI Verdict

A 10TB, 7200 RPM CMR drive with a 512MB cache, built for 24x7 small to medium business NAS systems with up to 8 bays.

Strong Fit

This 10TB, 7200 RPM CMR drive with a 512MB cache is purpose-built for 24x7 NAS environments, offering the durability and consistent performance needed for small to medium businesses or demanding home servers. Its NASware firmware and 180 TB/yr workload rate directly address the requirements of such systems.

If 10TB isn't enough, look for higher capacity WD Red Plus drives, which are available up to 14TB, to maximize storage density in your NAS enclosure.

Regret Score™

Very Low Risk

Lower is better — measures purchase-regret risk from real buyer complaints, review credibility, and product maturity

14/100
vs. 731 Storage we've analyzedSafer than 94%
Hidden Defects
7/35

Issues discovered after purchase

Achilles' Heel
0/25

Critically weak dimension

Expectation Gap
3/20

Amazon rating vs actual quality

Fit Risk
4/20

Chance this product isn't for you

BuyChoice Score
4.4

Pros

  • Features CMR technology, which provides more consistent performance than SMR alternatives for multi-user NAS workloads.
  • Operates at 7200 RPM, offering faster data transfer speeds compared to 5400 RPM drives.
  • Equipped with a 512MB cache, which is larger than the typical 256MB found in some Red Plus models, potentially boosting throughput.
  • Designed for continuous 24x7 operation in NAS environments, supporting a workload rate of up to 180 TB/yr.
  • Includes NASware firmware for enhanced system compatibility and optimized RAID performance.
  • Backed by a 3-year limited warranty, providing coverage for a reasonable period.

Cons

  • While generally quiet, some users reported older 10TB Red drives (WD101EFAX) were noticeably loud due to air-filling, though this model (WD100EFGX) is likely helium-filled and quieter.
  • Synology NAS systems might display compatibility warnings for drives not on their official list, even if they function correctly.
  • Rebuilding RAID arrays with a 10TB drive, even at 7200 RPM, can still take a considerable amount of time.

Dimension Scores

Read/Write Speed8/10

The 7200 RPM spindle speed and SATA 6 GB/s interface provide faster data transfer rates compared to common 5400 RPM NAS drives, making it suitable for media streaming and quick file access.

Reliability8/10

Built with CMR technology and designed for 24x7 operation with a 180 TB/yr workload rate, this drive is engineered for durability and consistent performance in demanding NAS environments.

Capacity Fit7/10

10TB offers substantial storage for small to medium businesses or extensive home media libraries, providing ample space for archiving and sharing files.

Compatibility8/10

Equipped with NASware firmware and a standard 3.5-inch form factor, it's specifically tested for compatibility with up to 8-bay NAS systems, ensuring broad integration.

Best For

  • Small to medium business NAS systems requiring 24x7 operation and high data availability.
  • Home users building a private cloud or media server like Plex, needing 10TB capacity and 7200 RPM performance.
  • RAID arrays (up to 8 bays) where data integrity and consistent performance are critical, especially with ZFS or similar file systems.
  • Archiving and sharing large files in a multi-user environment.

Not Recommended For

  • Users needing a single, low-cost drive for occasional desktop backup, as NAS-specific features add cost without benefit.
  • Systems exceeding 8 drive bays, as the drive is tested for up to 8-bay configurations.
  • Budget-constrained users who prioritize $/TB over 7200 RPM and CMR for less demanding workloads.

Watch Out For

  • Some users reported that older 10TB WD Red drives (WD101EFAX) were annoyingly loud, though the WD100EFGX is likely a quieter, helium-filled variant.
  • Synology NAS users might encounter compatibility warnings if the drive isn't on Synology's specific list, requiring manual override.
  • The 512MB cache, while a pro, has led to speculation among users that this specific model (WD100EFGX) might be an 'overstock Red Pro' relabeled, which could imply a temporary model run.

Full Specifications

ASINB0F4R3YCL6
BrandWD
ColorRed
SeriesWD Red Plus
Hard Drive10 TB Mechanical Hard Disk
Item Weight1.65 pounds
ManufacturerWestern Digital
Special FeatureDust Resistant
Installation TypeInternal Hard Drive
Item model numberWD100EFGX-SPCPLN0
Compatible DevicesDesktop
Product Dimensions5.79 x 4 x 1.52 inches
Hard Disk InterfaceSerial ATA-600
Hard Drive InterfaceSerial ATA-600
Hard Disk DescriptionMechanical Hard Disk
Hard Disk Form Factor3.5 Inches
Item Dimensions LxWxH5.79 x 4 x 1.52 inches
Connectivity TechnologySATA
Digital Storage Capacity10 TB
Hard Drive Rotational Speed7200 RPM

What Buyers Say

Users frequently highlight the WD Red Plus 10TB's CMR technology as a key differentiator, appreciating its consistent performance over SMR drives for NAS use. The 7200 RPM speed is often mentioned as a benefit for faster data access, especially for media servers. While some older 10TB Red drives had noise concerns, this specific model (WD100EFGX) appears to be a quieter, helium-filled variant, which is a relief for home users. The larger 512MB cache is also a pleasant surprise, contributing to better throughput.

“Needed a drive for my Plex server, and this 10TB Red Plus with 7200 RPM is actually quiet and fast enough for all my streaming, no weird SMR slowdowns like I heard about with other drives, definitely worth it for the peace of mind.”

Common Praise

  • CMR technology ensures predictable and sustained write performance, crucial for RAID arrays.
  • 7200 RPM speed makes a noticeable difference for streaming large files and accessing data quickly.
  • The 512MB cache provides a performance boost, especially under multi-user loads.
  • Designed for 24/7 operation, giving peace of mind for always-on NAS systems.
  • Reliability for constant read/write situations is frequently cited as a reason for purchase.

Common Complaints

  • Some users reported older 10TB Red drives being loud, though this model seems to mitigate that.
  • Synology NAS systems might throw warnings about non-listed drives, even if they work perfectly.
  • RAID rebuild times can still be lengthy due to the sheer 10TB capacity, even with 7200 RPM.

Ownership Tips

  • The drive runs cooler than expected, even in a multi-bay enclosure, likely due to its helium-filled design.
  • Initial setup in a Synology NAS might require dismissing a compatibility warning, but it integrates and performs without issues after that.
  • The 512MB cache really does seem to help with multiple simultaneous file transfers, preventing bottlenecks.
  • Noise levels are surprisingly low for a 7200 RPM drive, making it suitable for a living room NAS.

Frequently Asked Questions

Is this drive suitable for a home NAS that runs 24/7?

Yes, the WD Red Plus is specifically engineered for 24x7 operation in NAS environments, making it a strong choice for continuous use in a home server.

What does CMR technology mean for me?

CMR (Conventional Magnetic Recording) means the drive writes data in distinct, non-overlapping tracks, which generally provides more consistent performance, especially during heavy write operations, compared to SMR drives.

Will this drive work with my Synology NAS?

While Synology might display warnings for drives not on their official compatibility list, this drive is generally compatible. You can often manually add alternate brand drives to override these warnings.

How does the 512MB cache affect performance?

A larger 512MB cache helps improve data throughput and responsiveness, particularly in multi-user or high-demand NAS workloads, by providing more space for frequently accessed data.

Is this drive noisy?

The WD100EFGX model is generally described as quiet for home environments. While some older 10TB Red drives had noise complaints, this specific model is believed to be a quieter, helium-filled variant.

Buying Guide

When you're looking at a hard drive like this, you need to think about what you're actually going to do with it. This isn't just a drive to stick in your desktop for games; it's built for a Network Attached Storage (NAS) system. That means it's designed to be on all the time, handling data for multiple users or applications, like a home media server or a small business file share. You're paying for durability and consistent performance in that kind of demanding, always-on environment.

CMR (Conventional Magnetic Recording)

Think of CMR like writing in a notebook where each line is completely separate. This means the drive can write data without affecting adjacent tracks, leading to more predictable and faster performance, especially when writing lots of data or rebuilding a RAID array. SMR (Shingled Magnetic Recording) is like overlapping your writing, which can be slower for certain tasks.

7200 RPM (Revolutions Per Minute)

This is how fast the platters inside the drive spin. Higher RPM means the read/write heads can access data quicker. A 7200 RPM drive is faster than a 5400 RPM drive, which translates to quicker file transfers and better responsiveness, especially important for streaming media or multiple users accessing files simultaneously.

Workload Rate (180 TB/yr)

This spec tells you how much data the drive is designed to handle being written to or read from it in a year. A 180 TB/yr rating is high, indicating this drive is built for heavy use in a 24/7 environment, far exceeding what a typical desktop drive is rated for. It's like the 'mileage rating' for how much data traffic the drive can endure.

Alternatives

If you need more raw capacity and can sacrifice some speed, look for 5400 RPM NAS drives in higher capacities. If you need even faster performance for very demanding applications, consider enterprise-grade hard drives or SSDs, but be prepared for a significant price increase per terabyte.

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