The Dell EMC 3.84TB SAS 12G RI SFF 2.5" SSD – 0TT26V / TT26V (HGST Ultrastar DC SS530 WUSTR1538ASS200) is a high-performance enterprise solid state drive designed for Dell PowerEdge servers and enterprise storage arrays. Built by HGST (a Western Digital company), this drive belongs to the Ultrastar DC SS530 Series and is optimized for read-intensive (RI) workloads such as content delivery, data analytics, cloud storage, and large-scale virtualization environments.

With a 12Gb/s dual-port SAS (SAS-3) interface and 2nd Generation 3D TLC NAND technology, this 3.84TB SSD delivers strong throughput, high IOPS performance, and enterprise-grade reliability for 24/7 data center operations.

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General Specifications

• Manufacturer: Western Digital or HGST

• Series: Ultrastar DC SS530

• Model: WUSTR1538ASS200

• Manufacturer PArt Number: 0B40594

• Dell Part Number: TT26V / 0TT26V

• Capacity: 3.84TB

• Form Factor: 2.5" SFF (15mm height)

• Interface: 12Gb/s SAS (SAS-3), Dual-Port

• Workload Class: Read-Intensive (RI)

• NAND Type: 2nd Gen 3D TLC NAND

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Performance Specifications

• Sequential Read (128KiB): Up to 2,150 MB/s

• Sequential Write (128KiB): Up to 2,120 MB/s

• Random Read (4KiB): Up to 440,000 IOPS

• Random Write (4KiB): Up to 100,000 IOPS

• Mixed 70/30 R/W: Up to 190,000 IOPS

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Reliability & Enterprise Features

• Endurance: 1 Drive Write Per Day (DWPD)

• MTBF: 2.5 Million Hours

• Annual Failure Rate (AFR): 0.35%

• Power Consumption: ~3.2W idle / 9W–14W operating (configuration dependent)

• Shock Tolerance (Operating): 225g @ 1ms

• Features:

  • Power Loss Protection (PLP)

  • End-to-end data protection

  • TCG Enterprise & FIPS 140-2 security options

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Compatible Dell Platforms

Certified for use in a wide range of Dell enterprise systems:

PowerEdge Servers (12th–17th Generation)

Examples include:

• Dell PowerEdge R440

• Dell PowerEdge R640

• Dell PowerEdge R740

• Dell PowerEdge R740XD

• Dell PowerEdge R630

• Dell PowerEdge R730

• Dell PowerEdge R620

• Dell PowerEdge R720

• Dell PowerEdge T440

• Dell PowerEdge T640

Storage Arrays

• Dell PowerVault ME4 / ME5 Series

• Dell Compellent Storage Systems

For full compatibility (hot-swap functionality and firmware support), a Dell-certified drive tray/caddy such as DXD9H or equivalent is recommended.

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Additional Compatibility

Because this SSD uses a standard 12Gb/s SAS interface and 2.5" form factor, it may also function in other enterprise systems that support SAS-3 drives and compatible RAID/HBA controllers (e.g., Broadcom MegaRAID 93xx/94xx series). Compatibility with non-Dell systems such as HPE, Lenovo, or Supermicro depends on firmware recognition and controller support.

Please verify system compatibility, controller support, and caddy requirements before purchase.