SanDisk Ultrastar DC SN840 7.68TB NVMe SSD

SanDisk Ultrastar DC SN840 7.68TB NVMe SSD

Brand: SanDisk | Category: Enterprise SSDs

SKU: WUS4BA176DSP3X3 | Part #: WUS4BA176DSP3X3 | MPN: WUS4BA176DSP3X3

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About the SanDisk Ultrastar DC SN840 7.68TB NVMe SSD

The SanDisk Ultrastar DC SN840 is an enterprise-class NVMe SSD designed for high-capacity, mixed-workload data center environments. Built on a proven 7.68TB form factor optimized for U.2 2.5-inch slots, it delivers consistent performance across sequential and random access patterns typical of hyperscale infrastructure. The SN840 leverages 3D TLC NAND technology and advanced firmware to balance throughput, latency, and reliability in demanding cloud, analytics, and virtualization deployments.

This drive addresses the specific consolidation requirements of modern data centers seeking to maximize storage density while reducing physical rack footprint and power consumption. With its substantial capacity point and U.2 interface compatibility, the SN840 integrates into existing enterprise storage architectures without requiring specialized controller or firmware modifications.

Launched in Q2 2022, the Ultrastar DC SN840 has become a cornerstone SKU for operators managing large-scale flash storage pools, particularly where single-drive capacity and sustained I/O performance directly impact operational efficiency and total cost of ownership.

Ideal for

  • Hyperscale cloud infrastructure and multi-tenant virtualization platforms requiring high-capacity NVMe density
  • Data warehouse and analytics platforms consolidating storage footprints across distributed clusters
  • Software-defined storage and object storage clusters optimizing per-node capacity
  • High-frequency trading and financial services systems demanding low-latency, high-throughput access
  • Machine learning training infrastructure with large training dataset staging and model checkpointing
  • Database acceleration and intelligent caching layers in enterprise OLTP and OLAP environments

Technical specifications

ManufacturerSanDisk
BrandSanDisk
ModelUltrastar DC SN840
Manufacturer Part NumberWUS4BA176DSP3X3
Capacity7.68TB
Form FactorU.2 2.5-inch
InterfaceNVMe 1.4
NAND Type3D TLC
Sequential Read Performance7,100 MB/s
Sequential Write Performance5,600 MB/s
Random Read IOPS (4KB)1,050,000
Random Write IOPS (4KB)130,000
Average Latency< 100 µs (typical)
Power Consumption (Active Read)5.5W
Power Consumption (Active Write)7.0W
Power Consumption (Idle)0.06W
Operating Temperature Range0–70°C
MTBF2.5 million hours
Endurance (DWPD)3 DWPD (7-year workload)

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Technical Specifications

BrandSanDisk
CategoryEnterprise SSDs
SKUWUS4BA176DSP3X3
Part NumberWUS4BA176DSP3X3
ConditionNew
ModelUltrastar DC SN840
Manufacturer Part NumberWUS4BA176DSP3X3
Capacity7.68TB
Form FactorU.2 2.5-inch
InterfaceNVMe 1.4
NAND Type3D TLC
Sequential Read Performance7,100 MB/s
Sequential Write Performance5,600 MB/s
Random Read IOPS (4KB)1,050,000
Random Write IOPS (4KB)130,000
Average Latency< 100 µs (typical)
Power Consumption (Active Read)5.5W
Power Consumption (Active Write)7.0W
Power Consumption (Idle)0.06W
Operating Temperature Range0–70°C
MTBF2.5 million hours
Endurance (DWPD)3 DWPD (7-year workload)