WD Ultrastar DC SN861 6.4 TB 2.5 Inch U.2 PCIe 5.0 x4 Enterprise SSD 0TS2533
Brand: Western Digital | Category: Enterprise SSDs
SKU: 0TS2533 | Part #: 0TS2533 | MPN: WUS6CA264PSP9X3
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About the WD Ultrastar DC SN861 6.4 TB 2.5 Inch U.2 PCIe 5.0 x4 Enterprise SSD 0TS2533
Western Digital's Ultrastar DC SN861 6.4TB (Part Number: WUS6CA264PSP9X3) brings PCIe 5.0 performance into 2.5" U.2 form factor, delivering sequential read speeds of 13,700 MB/s and random read throughput of 3.3M IOPS. Built on proven QLC architecture with 3 DWPD endurance and 2.5M-hour MTBF, this drive is purpose-built for hyperscale data centers, AI training pipelines, and high-frequency transactional workloads where density and reliability intersect.
In multi-petabyte deployments—cloud object storage clusters, distributed analytics platforms, and media processing farms across the GCC region—the SN861 6.4TB eliminates legacy hybrid architectures. A single 1U server populated with 24 drives reaches 153.6TB raw capacity in a footprint that previously demanded spinning-disk JBOD racks. The Open Compute Project 2.0 design ensures compatibility with standard OCP infrastructure, critical for carriers and enterprises building vendor-neutral cloud platforms.
Organizations standardizing on NVMe-native infrastructure benefit from sub-millisecond latency consistency, predictable write performance at 7,500 MB/s, and the operational simplicity of eliminating disk firmware quirks entirely. Omnixon Global stocks the SN861 6.4TB for immediate delivery across EMEA and Asia-Pacific territories, with full technical support and volume pricing available upon request—contact our enterprise solutions team for RFQ or detailed sizing consultation.
```Technical Specifications
| Brand | Western Digital |
| Category | Enterprise SSDs |
| SKU | 0TS2533 |
| Part Number | 0TS2533 |
| MPN | WUS6CA264PSP9X3 |
| Condition | New |
| Capacity | 6.4 TB |
| Form Factor | 2.5 Inch U.2 |
| Interface | PCIe Gen5 |
| Speed | 13700/7500 MB/s R/W |
| Capacity | 6.4TB |
| Interface | NVMe PCIe Gen5 |
| Form Factor | 2.5" |
| Sequential Read | Up to 13700 MB/s |
| Sequential Write | Up to 7500 MB/s |
| Random Read IOPS | 3300000 |
| Random Write IOPS | 800000 |
| Endurance (TBW) | 3 DWPD |
| MTBF | 2500000 hours |
| Features | Open Compute Project 2.0 |
Frequently Asked Questions about WD Ultrastar DC SN861 6.4 TB 2.5 Inch U.2 PCIe 5.0 x4 Enterprise SSD 0TS2533
What does the WD Ultrastar DC SN861 6.4 TB 2.5 Inch U.2 PCIe 5.0 x4 Enterprise SSD do?
At 6.4 TB, the WD Ultrastar DC SN861 6.4 TB 2.5 Inch U.2 PCIe 5.0 x4 Enterprise SSD suits enterprise data-center storage tiers — all-flash arrays, hyperconverged storage pools (vSAN, Ceph), database backends, and high-throughput backup repositories. The PCIe 5.0 x4 interface is supported by major server platforms.
What are the headline specs of the WD Ultrastar DC SN861 6.4 TB 2.5 Inch U.2 PCIe 5.0 x4 Enterprise SSD?
Key specifications for the WD Ultrastar DC SN861 6.4 TB 2.5 Inch U.2 PCIe 5.0 x4 Enterprise SSD: capacity 6.4 TB; form factor 2.5 Inch U.2; interface PCIe 5.0 x4; 5 Years support; new condition; model WUS6CA264PSP9X3; part number 0TS2533; capacity 6.4 TB; interface PCIe 5.0 x4; form factor 2.5 Inch U.2; sequential read speed Up to 13700 MB/s. Manufacturer part number 0TS2533. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.
Is the WD Ultrastar DC SN861 6.4 TB 2.5 Inch U.2 PCIe 5.0 x4 Enterprise SSD compatible with my infrastructure?
The WD Ultrastar DC SN861 6.4 TB 2.5 Inch U.2 PCIe 5.0 x4 Enterprise SSD uses a PCIe 5.0 x4 interface in a 2.5 Inch U.2 form factor. It's compatible with server platforms that expose this interface — typical deployments include Dell PowerEdge, HPE ProLiant, Lenovo ThinkSystem, and Supermicro SuperServer chassis. For specific vendor part-number compatibility, our team validates against the manufacturer support matrix.