Western Digital Ultrastar DC SN655 15.36TB U.3 NVMe PCIe Gen4

Western Digital Ultrastar DC SN655 15.36TB U.3 NVMe PCIe Gen4

Brand: Western Digital | Category: Enterprise SSDs

SKU: WUS5EA115ESP7E3 | Part #: WUS5EA115ESP7E3 | MPN: WUS5EA115ESP7E3

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About the Western Digital Ultrastar DC SN655 15.36TB U.3 NVMe PCIe Gen4

The Western Digital Ultrastar DC SN655 is a mainstream enterprise NVMe SSD featuring PCIe Gen4 interface technology in the U.3 form factor. Designed for read-intensive workloads, this drive delivers sequential performance optimized for throughput-heavy applications across data centers and enterprise infrastructure. The 15.36TB capacity provides substantial storage density for consolidation-focused deployments requiring high-capacity individual drives.

Architecturally, the SN655 employs Western Digital's enterprise-class controller and NAND stack to balance performance consistency with cost efficiency. The drive supports standard NVMe command set protocols and integrates power-loss protection mechanisms suitable for mission-critical environments. Its U.3 form factor enables deployment in standard enterprise storage enclosures designed for this emerging standard.

The SN655 targets mainstream enterprise segments including cloud infrastructure, analytics platforms, and general-purpose data center storage where per-drive capacity and sequential throughput efficiency balance operational requirements and total-cost-of-ownership considerations.

Ideal for

  • Cloud data center compute node storage acceleration for read-heavy virtualization workloads
  • Data warehouse and analytics platforms supporting large-scale sequential data scanning operations
  • Content delivery infrastructure caching and hot-data storage layers
  • Enterprise backup and archival staging environments requiring high throughput
  • Distributed database node storage for read-optimized operational databases
  • Machine learning inference platforms requiring rapid model data access

Technical specifications

ManufacturerWestern Digital
BrandUltrastar
ModelDC SN655
Manufacturer Part NumberWUS5EA115ESP7E3
Form FactorU.3 (15mm)
Capacity15.36TB
InterfaceNVMe PCIe Gen4
ProtocolNVMe 1.4
NAND Type3D TLC
ControllerEnterprise-class proprietary
Max Sequential Read7,100 MB/s
Max Sequential Write2,800 MB/s
Random Read IOPS1,180K
Random Write IOPS84K
Power Consumption (Active Read)11.5W
Power Consumption (Idle)0.12W
Mean Time Between Failures2.6M hours
Workload RatingRead-intensive enterprise

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Technical Specifications

BrandWestern Digital
CategoryEnterprise SSDs
SKUWUS5EA115ESP7E3
Part NumberWUS5EA115ESP7E3
ConditionNew
ModelDC SN655
Manufacturer Part NumberWUS5EA115ESP7E3
Form FactorU.3 (15mm)
Capacity15.36TB
InterfaceNVMe PCIe Gen4
ProtocolNVMe 1.4
NAND Type3D TLC
ControllerEnterprise-class proprietary
Max Sequential Read7,100 MB/s
Max Sequential Write2,800 MB/s
Random Read IOPS1,180K
Random Write IOPS84K
Power Consumption (Active Read)11.5W
Power Consumption (Idle)0.12W
Mean Time Between Failures2.6M hours
Workload RatingRead-intensive enterprise