Western Digital

Western Digital WDS400T2R0A 4TB WD Red SA500 NAS SSD

4.7 (2005 reviews)
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Optimize Your NAS Performance with Reliable SSD StorageThe Western Digital 4TB WD Red SA500 NAS SSD is engineered to boost the performance and responsiveness of your NAS system. Designed for 24/7 operation, this SSD offers superior endurance and efficient caching for demanding applications, ensur...

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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

Optimize Your NAS Performance with Reliable SSD Storage

The Western Digital 4TB WD Red SA500 NAS SSD is engineered to boost the performance and responsiveness of your NAS system. Designed for 24/7 operation, this SSD offers superior endurance and efficient caching for demanding applications, ensuring reliable storage for both home and business users.

  • Capacity: 4TB
  • Interface: SATA III 6 Gb/s
  • Form Factor: 2.5"/7mm
  • Read Speed: Up to 560 MB/s
  • NAND: 3D NAND
  • Application: NAS Systems

Key Features

Storage optimized for caching in NAS systems to rapidly access your most frequently used files.

Superior endurance can handle the heavy read and write loads demanded by NAS, giving you the reliability you need in a 24/7 environment.

Purpose-built for NAS with proven Western Digital 3D NAND to deliver maximum SATA performance to both home and business users.

Reduces latency and improves responsiveness for OLTP databases, multi-user environments, photo rendering, 4K and 8K video editing, and more.

Available in 2.5” and M.2 form factors to fit the slots in modern NAS systems.

Specifications

Capacity
4TB
Form Factor Options
2.5” and M.2
NAND Technology
Western Digital 3D NAND
Primary Application
NAS Storage Optimized for Caching
Interface
SATA
Environment Suitability
24/7 NAS environments

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Pros & Cons

👍 Pros

  • Optimized storage for caching in NAS systems provides rapid access to frequently used files.
  • Offers superior endurance, designed to handle the heavy read and write loads of 24/7 NAS environments.
  • Purpose-built for NAS with Western Digital 3D NAND ensures maximum SATA performance for various users.
  • Significantly reduces latency, improving responsiveness for demanding applications like OLTP databases and 4K/8K video editing.
  • Available in both 2.5” and M.2 form factors, ensuring compatibility with modern NAS system slots.

👎 Cons

  • The drive is specifically optimized for NAS systems, which might not offer the best value or performance for standard desktop use.
  • While superior endurance is a pro, specific endurance ratings (e.g., TBW) are not detailed in the provided features.
  • The product is built for SATA performance, meaning it won't achieve the faster speeds of NVMe SSDs in compatible systems.
  • Focuses on caching and reliability in a NAS, which might not translate to top-tier sequential read/write speeds compared to other SSD types.
  • The need for a NAS environment means it's not a standalone storage solution for a typical computer setup.

Frequently Asked Questions

This SSD is storage-optimized for caching in NAS systems, meaning it's purpose-built for those environments and might not be the most cost-effective or highest-performing choice for a standard desktop.
It's designed to deliver maximum SATA performance in NAS systems, reducing latency and improving responsiveness for demanding tasks like 4K/8K video editing and multi-user environments.
Yes, the Western Digital WD Red SA500 NAS SSD features superior endurance designed to handle the heavy read and write loads demanded by 24/7 NAS environments.
The Western Digital WDS400T2R0A is available in both 2.5” and M.2 form factors, allowing it to fit various modern NAS systems.
It is purpose-built for NAS with proven Western Digital 3D NAND to deliver maximum SATA performance to both home and business users.
The storage is optimized for caching in NAS systems to rapidly access your most frequently used files, improving overall system speed.