WD Ultrastar DC SN840 Enterprise SSD

Brand: Western Digital | Category: Enterprise SSDs

SKU: WDS153T2B0C | Part #: WDS153T2B0C | MPN: WDS153T2B0C

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The WD Ultrastar DC SN840 (part number WDS153T2B0C) delivers 1 DWPD endurance across its 15.36 TB capacity, positioning it as a reliable workhorse for write-intensive production environments where data durability matters as much as speed. Western Digital engineered this U.2 form factor drive specifically for data centres that cannot afford drive replacement cycles to become an operational overhead, making the endurance rating a primary specification rather than an afterthought.

Storage architects and infrastructure teams selecting SSDs for database clusters, analytics pipelines, and virtual machine host pools gravitate toward this drive because the performance envelope balances real-world workload demands without sacrificing longevity. Sequential throughput reaches 3,200 MB/s on reads and 2,000 MB/s on writes—sufficient for most tier-1 storage controllers to saturate the PCIe Gen 3.1 x4 NVMe 1.4 interface without becoming a bottleneck. The random I/O profile is where this Western Digital product separates itself: 780,000 IOPS on 4K random reads and 200,000 IOPS on writes reflect the drive's 3D TLC NAND architecture tuned for consistent performance under sustained load. This matters when your hypervisor is running hundreds of virtual machines or your AI lab is executing parallel training jobs that generate unpredictable I/O patterns.

Enterprise deployments demand more than raw speed, and the WDS153T2B0C incorporates several features that sysadmins and storage operations teams have learned to expect. Power loss protection via onboard capacitors ensures that in-flight data reaches the NAND safely if your data centre experiences a momentary power interruption—a common concern in regions with less resilient grid infrastructure. The drive implements T10 DIF end-to-end data path protection, which catches corrupted data before it propagates to application layers where it becomes expensive to detect. TCG Opal 2.0 Self-Encrypting Drive functionality means encryption happens transparently at the controller level without consuming CPU cycles on your host, and multiple namespace support enables secure multi-tenant configurations where different applications or business units need logical isolation on the same physical drive. Western Digital also included SR-IOV support, allowing the drive to present itself as multiple virtual PCIe devices to hypervisors, a feature that enterprise virtualisation teams have come to rely on.

Thermal and power characteristics reflect this drive's suitability for rack-mounted environments where cooling infrastructure is managed centrally. Operating across 0°C to 70°C provides adequate margin for most data centre HVAC systems, and active read power consumption maxes out at 14W—low enough that even dense storage arrays do not require dedicated power provisioning beyond standard rack PSU allocations. The 15mm height and U.2 SFF-8639 form factor mean the WDS153T2B0C fits into existing enterprise storage enclosures without requiring new hardware investments, a practical consideration for organisations upgrading storage capacity incrementally rather than deploying entirely new platforms.

For purchasing teams evaluating storage refresh cycles or new infrastructure buildouts, the combination of 15.36 TB capacity and 1 DWPD endurance translates to predictable total cost of ownership. You are purchasing a drive that will survive sustained workloads, integrates into established data centre workflows, and comes backed by vendor support that understands enterprise requirements. The WDS153T2B0C is not exotic; it is the type of drive you can deploy confidently in production without waiting for field reliability data from other customers.

Performance Specifications

• Sequential read throughput up to 3,200 MB/s and write throughput up to 2,000 MB/s over PCIe Gen 3.1 x4 NVMe 1.4
• Random I/O performance of 780,000 IOPS (4K read) and 200,000 IOPS (4K write) for transactional workloads
• 1 DWPD endurance rating at 15.36 TB capacity ensures extended operational lifespan for write-intensive applications
• Capacitor-based power loss protection with T10 DIF data integrity verification across the entire I/O path
• TCG Opal 2.0 Self-Encrypting Drive with multiple namespace and SR-IOV virtualisation support
• Operating temperature range 0°C to 70°C with active read power consumption of 14W
• U.2 SFF-8639 form factor, 15mm height, compatible with standard enterprise storage enclosures

Omnixon Global stocks the WD Ultrastar DC SN840 WDS153T2B0C and maintains inventory across our Dubai headquarters and regional logistics hubs serving the GCC, South Asia, and Europe. Whether you are scaling a data centre in the UAE, building out an AI infrastructure lab in Saudi Arabia, or expanding storage capacity for an enterprise campus across multiple time zones, our technical sales team can assist with compatibility verification, volume configuration, and expedited delivery. Submit an RFQ through our website or contact our enterprise storage division to discuss your specific capacity and performance requirements.