Western Digital Ultrastar DC SN640 3.84TB NVMe SSD

Western Digital Ultrastar DC SN640 3.84TB NVMe SSD

Brand: Western Digital | Category: Enterprise SSDs

SKU: WUS4BB038D7P3E3 | Part #: WUS4BB038D7P3E3 | MPN: WUS4BB038D7P3E3

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About the Western Digital Ultrastar DC SN640 3.84TB NVMe SSD

The Ultrastar DC SN640 delivers 3.84TB NVMe performance with enterprise PLP, suited for transactional databases and latency-critical server workloads.

At a glance — key specifications

Capacity3.84 TB
ProtocolNVME
Part NumberWUS4BB038D7P3E3
ManufacturerWestern Digital
EnduranceEnterprise (high DWPD)
Power Loss ProtectionYes (PLP capacitors)

Perfect for

  • Tier-0 database storage (Oracle, SQL Server, PostgreSQL)
  • AI / ML training and inference data lakes
  • Hyperconverged storage tiers
  • Object storage and Ceph clusters
  • VDI boot tiers and tier-1 virtualisation

Frequently asked questions

What workloads is the Western Digital Ultrastar DC SN640 3.84TB NVMe SSD designed for?

Enterprise mixed-use and read-intensive workloads — including transactional databases, AI inference data, virtualisation, hyperconverged storage, and analytics. Endurance is rated for continuous operation, not consumer-style burst use.

Will this SSD work in my Dell / HPE / Lenovo server?

Most enterprise SSDs ship in vendor-branded variants tied to a server QVL.

Request a quote for the Western Digital Ultrastar DC SN640 3.84TB NVMe SSD

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Technical Specifications

BrandWestern Digital
CategoryEnterprise SSDs
SKUWUS4BB038D7P3E3
Part NumberWUS4BB038D7P3E3
ConditionNew
Capacity3.84 TB
ProtocolNVME
EnduranceEnterprise (high DWPD)
Power Loss ProtectionYes (PLP capacitors)
Manufacturer Part NumberWUS4BB038D7P3E3
Product LineUltrastar DC SN640
Form Factor2.5-inch
InterfaceNVMe PCIe 4.0
Max Sequential Read Speed7,000 MB/s
Max Sequential Write Speed6,000 MB/s
IOPS (Random Read)1,150K
IOPS (Random Write)180K
NAND Technology3D TLC
Operating Temperature Range0–70 °C

Frequently Asked Questions about Western Digital Ultrastar DC SN640 3.84TB NVMe SSD

What workloads is the Western Digital Ultrastar DC SN640 3.84TB NVMe SSD designed for?

Enterprise mixed-use and read-intensive workloads — including transactional databases, AI inference data, virtualisation, hyperconverged storage, and analytics. Endurance is rated for continuous operation, not consumer-style burst use.