0TS1843 WD Ultrastar DC SN620 3.2TB U.2 NVMe 2.5" Server SSD

High-Performance 2.5in U.2 NVMe Datacenter SSD featuring encrypted, hot-swap U.2 architecture with the 0TS1843

The 0TS1843 is a WD Ultrastar DC SN620 3.2TB 2.5in U.2 NVMe SSD designed for modern server platforms that depend on low-latency PCIe-attached storage for dense rack deployments. By leveraging an NVMe queueing model over a U.2 hot-swap backplane, the 0TS1843 aligns with contemporary CPU root-complex topologies and reduces storage bottlenecks for virtualisation hosts, database nodes, and read-optimised tiers.

Architecturally, the 0TS1843 focuses on predictable service levels through enterprise MLC NAND, Power Loss Protection, and sustained endurance rated at 1.2 DWPD over 5 years. Sequential throughput up to 1700 MB/s read and 1100 MB/s write supports fast boot, log, and cache roles, while hot-swap U.2 integration simplifies maintenance windows and enables storage scaling without service interruption across PCIe-enabled expansion and storage fabrics.

Why Choose the 0TS1843?

The 0TS1843 provides a practical density-to-performance profile for mixed VM and database environments where read responsiveness, consistent latency, and secure decommissioning are operational requirements. With 24x7 design targets, 2.0M hours MTBF, and a U.2 hot-swap form factor, the 0TS1843 supports scalable node builds that prioritise uptime, rapid replacement workflows, and controlled growth of NVMe tiers.

WD engineers the Ultrastar portfolio around datacenter reliability, validated firmware behaviour, and integration with standard enterprise backplanes and management processes. The 0TS1843 reflects this approach by combining encryption, data protection, and predictable endurance to meet modern rack server lifecycle and compliance expectations.

Key Applications:

• Read-optimised NVMe storage tiers
• Virtualisation and mixed VM datastores
• Database read acceleration
• Server OS boot and fast recovery
• Log, cache, and metadata devices

At Happyware - Server Hardware you benefit from non-binding offers tailored to your storage architecture and rollout schedule, and an extended warranty up to 6 years to secure long-term operation of the 0TS1843 across enterprise refresh cycles.