WD 4TB Red Pro 7200 rpm SATA III 3.5" Internal NAS HDD

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WD 4TB Red Pro 7200 rpm SATA III 3.5" Internal NAS HDD
Key Features
  • 4TB Storage Capacity
  • 3.5" Form Factor
  • SATA III 6 Gb/s Interface
  • 256MB Cache
Engineered to deliver high performance and reliability to commercial and enterprise NAS environments, the 4TB Red Pro 7200 rpm SATA III 3.5" Internal NAS HDD from WD is well-suited for multimedia and creative pros, medium to large businesses, and commercial and enterprise NAS systems. Able to work in RAID-optimized NAS systems with an unlimited number of drive bays, this 4TB drive operates using a SATA III 6 Gb/s interface, a 256MB cache, and a rotational speed of 7200 rpm, which all help to ensure uninterrupted data transfers with a rate of up to 267 MB/s. This drive also features high levels of reliability, with 600,000 load/unload cycles, < 1 in 1015 non-recoverable read errors per bits read, a workload rate of 550TB per year, dual-plane balance control technology, and 2 million hours MTBF. Shock protection is provided by a multi-axis shock sensor and WD's NASware helps increase system compatibility, allowing Red Pro drives to be more easily integrated with your existing network infrastructure.
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WD Internal HDD Overview

Engineered to deliver high performance and reliability to commercial and enterprise NAS environments, the 4TB Red Pro 7200 rpm SATA III 3.5" Internal NAS HDD from WD is well-suited for multimedia and creative pros, medium to large businesses, and commercial and enterprise NAS systems. Able to work in RAID-optimized NAS systems with an unlimited number of drive bays, this 4TB drive operates using a SATA III 6 Gb/s interface, a 256MB cache, and a rotational speed of 7200 rpm, which all help to ensure uninterrupted data transfers with a rate of up to 267 MB/s. This drive also features high levels of reliability, with 600,000 load/unload cycles, < 1 in 1015 non-recoverable read errors per bits read, a workload rate of 550TB per year, dual-plane balance control technology, and 2 million hours MTBF. Shock protection is provided by a multi-axis shock sensor and WD's NASware helps increase system compatibility, allowing Red Pro drives to be more easily integrated with your existing network infrastructure.

Highlights
  • 4TB storage capacity
  • For RAID-optimized NAS systems with an unlimited number of bays
  • Workload rating of up 550TB per year and up to a 2 million hours MTBF
Ideal For
  • Multimedia creative pros
  • Medium to large businesses
  • Commercial and enterprise NAS systems
Optimized for NAS with NASware
Western Digital's exclusive NASware technology fine tunes drive parameters to match NAS system workloads, which helps increase performance and reliability.
Designed for Continuous Operation
WD Red Pro hard drives are designed to handle the rigorous demands of high-intensity 24/7 multi-user NAS environments and increase system durability.
Tested for Dependable Compatibility
Western Digital partners with a wide range of NAS system vendors for extensive testing to ensure compatibility with most NAS enclosures.
Protected Against Excessive Vibration
WD Red Pro drives include Rotation Vibration (RV) sensors that anticipate and proactively counteract disturbances caused by increased vibration. By dispersing excess vibration across the drive chassis, turbulence is minimized, performance is maintained, and drives are protected.
Built to Absorb Shock
WD Red Pro hard drives include a multi-axis shock sensor to detect subtle shock events and automatically compensate with dynamic fly height technology to further protect the drives in NAS enclosures.
Limited 5-Year Warranty
Western Digital stands behind their NAS storage solutions with the assurance of a limited 5-year limited warranty and world-class support services for hassle free data storage.
Desktop Drives vs. WD Red Pro
Compatibility
Unlike desktop drives, WD Red hard drives are specifically designed and tested for NAS and include NASware technology which fine tunes drive parameters to match NAS system workloads for optimum performance.
Reliability
Desktop drives aren't typically designed for the demands of an always-on NAS environment. WD Red hard drives are designed to perform under tough conditions encountered in high-intensity 24/7 multi-user NAS environments.
RAID Ready
WD Red hard drives are engineered with RAID error recovery control to help reduce failures within multi-bay NAS systems, unlike most desktop drives that are configured for generic use.
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 hard drives include Rotation Vibration (RV) sensors that anticipate and proactively counteract disturbances caused by increased vibration often found in multi-bay NAS systems.
UPC: 718037902814

WD Internal HDD Specs

Key Specs
Total Capacity
4 TB
Drive Type
SATA III / 3.5" HDD (7200 rpm)
Read Speed
Maximum: 267 MB/s
Write Speed
Maximum: 267 MB/s
Total Capacity
4 TB
Drive Type
SATA III / 3.5" HDD (7200 rpm)
Performance
Read Speed
Maximum: 267 MB/s
Write Speed
Maximum: 267 MB/s
Encryption Support
No
Mean Time Between Failures (MTBF)
2.0 Million Hours
Endurance (Total Bytes Written)
550 TB
Electrical
Power Draw
5.8 W (Active)
4.0 W (Idle)
0.3 W (Standby)
Input Power
12 VDC at 2 A
General
Operating Conditions
32 to 149°F / 0 to 65°C
Operating Shock
65 G / 2.0 ms
Storage Conditions
-40 to 158°F / -40 to 70°C
Dimensions
5.8 x 4 x 1.02" / 147.3 x 101.6 x 25.91 mm
Weight
1.59 lb / 0.72 kg
Packaging Info
Package Weight
1.745 lb
Box Dimensions (LxWxH)
7.9 x 5 x 2.5"

WD Internal HDD Reviews

Fantastic drives for my home media server

By Joban
Rated 4 out of 5
Date: 2026-08-09

Just finished installing my new 26TB drives to my UGreen 4800 NAS. My home Media player (Plex) is now my very own personal streaming service. Goodbye monthly streaming plans. Hello to backing up all of my physical media. Now that companies are making the big push to ALL DIGITAL and doing away with physical media, I will have my own personal Library of every CD, DVD, HD-DVD, and Blu-ray I own. And I will continue to buy physical and back it up. I will run my own media server and do away with the monthly subscription bills for the streaming services. Yay!

Showed up dead, rma in progres

By Jerod
Rated 1 out of 5
Date: 2026-06-10

Spent a crazy amount of time trying to get this to work and ultimately gave up and RMA’d it. For the price, the quality is certainly suspect.

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