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WD Red Pro 18TB NAS hard drive front label with 3.5-inch form factor and Western Digital branding
WD Red Pro 18TB NAS hard drive front label with 3.5-inch form factor and Western Digital branding
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Western Digital WD Red Pro (WD181KFGX 4 PACK) 18TB 7200RPM 3.5" SATA Hard Drive

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$6,407.99 exc. VAT Note: VAT will be charged for UK & EU Countries at checkout. For Zero VAT (for EU buyers), please provide a VAT number at checkout.

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Dispatch Time: Next Working Day Dispatch timelines are estimates and may vary due to unforeseen delays of 1-2 working days for small orders. Larger quantities may require additional processing time.

Product Code: UDHO-4209

MPN #: WD181KFGX 4 PACK

Product Condition: New

Running out of reliable storage for your growing business data can halt productivity and risk loss. The Western Digital WD Red Pro (WD181KFGX 4 PACK) 18TB 7200RPM 3.5" SATA Hard Drive is a high-capacity, 24×7 hard drive designed for commercial NAS systems, giving you the space and endurance you need to keep files accessible around the clock.

Usages of a 18TB Hard Drive

Ideal for multi-bay NAS units in offices, creative studios or small data centres, this hard drive stores large media libraries, backups, and collaborative project files, ensuring smooth access for many users throughout the workday.

Benefits of Western Digital Hard Drive
  • **High Capacity:** 18 TB lets you archive years of data without frequent upgrades.
  • **Continuous Operation:** Built for 24×7 use, it stays reliable even under heavy workloads.
  • **Vibration Protection:** Rotation-vibration sensors minimise performance loss in crowded enclosures.
  • **Shock Resistance:** Multi-axis shock sensor safeguards data during handling or movement.
  • **Warranty Support:** Backed by a 5-year limited warranty and dedicated technical assistance.

Western Digital Hard Drive Overview

Choosing this drive means you get enterprise-class performance without the complexity of a server-grade system. The integrated NASware™ technology fine-tunes the drive for NAS workloads, improving both speed and reliability, so you experience fewer bottlenecks when multiple users access files simultaneously. Its helium-filled design reduces friction and power consumption, helping keep operating costs low while maintaining a quiet environment.

The drive also features OptiNAND™ flash for housekeeping tasks, freeing up more of the 18 TB for your actual data. With a 2.5 million-hour MTBF and low non-recoverable error rate, you can trust that critical information remains safe over the long term, making it a solid foundation for any growing storage infrastructure.

Key Features of a 18TB Hard Drive
  • **Capacity:** 18 TB. Massive storage for extensive file collections.
  • **Spindle Speed:** 7200 rpm. Faster data retrieval compared with slower drives.
  • **Interface:** SATA 6Gb/s. Standard connection for broad compatibility with NAS devices.
  • **Cache:** 512 MB. Improves read/write efficiency during heavy usage.
  • **Form Factor:** 3.5". Fits standard 3.5-inch drive bays in most NAS enclosures.
  • **Power Consumption:** 6.1 W read/write, 3.6 W idle. Balances performance with energy efficiency.
  • **Operating Temperature:** 32 °F - 149 °F. Reliable operation in typical server room conditions.
  • **Vibration Sensor:** Rotation Vibration (RV) sensor. Actively counters chassis vibration.
  • **Shock Sensor:** Multi-axis shock sensor with dynamic fly height. Protects data during movement.
  • **Warranty:** 5-year limited warranty. Provides peace of mind and support.

Specifications
Miscellaneous
Miscellaneous / MTBF2,500,000hours
Storage
Storage / TypeHard drive
Header
Header / Product LineWD Red Pro
Header / Packaged Quantity4
Dimensions & Weight
Dimensions & Weight / Height1in
Dimensions & Weight / Width4in
Dimensions & Weight / Depth5.8in
Dimensions & Weight / Weight24.34oz
Environmental Parameters
Environmental Parameters / Min Operating Temperature32 °F
Environmental Parameters / Max Operating Temperature149 °F
Environmental Parameters / Min Storage Temperature-40 °F
Environmental Parameters / Max Storage Temperature158 °F
Environmental Parameters / Shock Tolerance (non-operating)250 g @ 2 ms
Environmental Parameters / Shock Tolerance (operating)50 g @ 2 ms
Environmental Parameters / Sound Emission20 dBA
General
General / Capacity18 TB
General / Depth5.8 in
General / Buffer Size512 MB
General / Width4 in
General / Weight24.34 oz
General / InterfaceSATA 6Gb/s
General / Device TypeHard drive - internal
General / Form Factor3.5"
General / Features24x7 continuous operation, Advanced Format technology, Conventional magnetic recording (CMR), Native Command Queuing (NCQ), Rotational Vibration (RV) sensor, Multi-axis shock sensor, Dynamic fly height technology, Error Recovery Control, workload up to 550 TB per year, NASware technology, Helium technology
General / Height1 in
Expansion & Connectivity
Expansion & Connectivity / Interfaces1 x SATA 6 Gb/s
Expansion & Connectivity / Compatible Bay3.5"
Performance
Performance / Drive Transfer Rate600 MBps (external)
Performance / Spindle Speed7200 rpm
Performance / Internal Data Rate272 MBps
Reliability
Reliability / 24x7 OperationYes
Reliability / MTBF2,500,000 hours
Reliability / Non-Recoverable Errors10 per 10^15
Reliability / Load / Unload Cycles600,000
Hard Drive
Hard Drive / Internal Data Rate272MBps
Hard Drive / Form Factor3.5"
Hard Drive / Non-Recoverable Errors10 per 10^15
Hard Drive / Spindle Speed7200rpm
Hard Drive / InterfaceSerial ATA-600
Hard Drive / Form Factor (Short)3.5"
Hard Drive / 24x7 OperationYes
Hard Drive / Form Factor (Short) (metric)8.9 cm
Hard Drive / Capacity18TB
Hard Drive / Data Transfer Rate600MBps
Hard Drive / Buffer Size512MB
Hard Drive / Hard Drive TypeInternal hard drive
Hard Drive / Form Factor (metric)8.9 cm
Power
Power / Power Consumption6.1 watt (read) ¦ 6.1 watt (write) ¦ 3.6 watt (idle) ¦ 0.9 watt (standby) ¦ 0.9 watt (sleep)
Summary Details
HDD capacity18 TB
HDD speed7200 RPM
Storage drive buffer size512 MB
HDD size3.5"
InterfaceSerial ATA
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