Brand: SanDisk | Category: Enterprise SSDs
SKU: WUS4BA138DSP3X3 | Part #: WUS4BA138DSP3X3 | MPN: WUS4BA138DSP3X3
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The SanDisk Ultrastar DC SN840 is a high-capacity enterprise NVMe SSD designed for read-intensive workloads in hyperscale and cloud infrastructure environments. Built on PCIe Gen3 x4 technology with a U.2 form factor, this drive delivers consistent performance for large-scale data center deployments requiring reliable sequential and random read operations.
Engineered for persistent storage applications, the 3.84TB capacity addresses the growing demand for denser storage configurations in server refresh programs. The drive utilizes advanced NAND flash technology to balance performance with endurance, making it suitable for continuous operation in mission-critical infrastructure where read operations dominate the I/O profile.
| Manufacturer | SanDisk |
| Model | Ultrastar DC SN840 |
| Capacity | 3.84TB |
| Part Number | WUS4BA138DSP3X3 |
| Form Factor | U.2 2.5-inch |
| Interface | PCIe Gen3 x4 NVMe |
| Protocol | NVMe 1.3 |
| Controller | SanDisk proprietary |
| NAND Type | 3D TLC NAND Flash |
| Max Sequential Read | 560 MB/s |
| Max Sequential Write | 510 MB/s |
| Random Read (4K) | 95,000 IOPS |
| Random Write (4K) | 85,000 IOPS |
| Power Consumption (Active Read) | 4.8W |
| Power Consumption (Idle) | 0.8W |
| Operating Temperature Range | 0–70°C |
| MTBF | 2,000,000 hours |
| Launch Date | Q2 2022 |
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| Brand | SanDisk |
| Category | Enterprise SSDs |
| SKU | WUS4BA138DSP3X3 |
| Part Number | WUS4BA138DSP3X3 |
| Condition | New |
| Model | Ultrastar DC SN840 |
| Capacity | 3.84TB |
| Form Factor | U.2 2.5-inch |
| Interface | PCIe Gen3 x4 NVMe |
| Protocol | NVMe 1.3 |
| Controller | SanDisk proprietary |
| NAND Type | 3D TLC NAND Flash |
| Max Sequential Read | 560 MB/s |
| Max Sequential Write | 510 MB/s |
| Random Read (4K) | 95,000 IOPS |
| Random Write (4K) | 85,000 IOPS |
| Power Consumption (Active Read) | 4.8W |
| Power Consumption (Idle) | 0.8W |
| Operating Temperature Range | 0–70°C |
| MTBF | 2,000,000 hours |
| Launch Date | Q2 2022 |
the SanDisk Ultrastar DC SN840 3.84TB NVMe SSD suits enterprise data-center storage tiers — all-flash arrays, hyperconverged storage pools (vSAN, Ceph), database backends, and high-throughput backup repositories. It is supported by major server platforms.
Key specifications for the SanDisk Ultrastar DC SN840 3.84TB NVMe SSD: new condition; manufacturer SanDisk; model Ultrastar DC SN840; capacity 3.84TB; part number WUS4BA138DSP3X3; form factor U.2 2.5-inch; interface PCIe Gen3 x4 NVMe. Manufacturer part number WUS4BA138DSP3X3. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.