0TS1844 WD Ultrastar DC SN620 3.84TB U.2 NVMe 2.5" Server SSD

Enterprise U.2 NVMe Datacenter SSD for Read-Intensive Server Tiers with the 0TS1844

The 0TS1844 is a WD Ultrastar DC SN620 3.84TB datacenter SSD engineered for consistent low-latency boot, cache, and read-optimised application tiers in 24/7 server environments. Built in a 2.5-inch U.2 form factor, the 0TS1844 aligns with standard U.2 NVMe backplanes to simplify mixed-fleet storage standardisation and reduce platform-specific qualification effort across rack servers.

Using an NVMe protocol stack over PCIe connectivity, the 0TS1844 is designed to minimise I/O overhead compared to SATA/SAS devices, supporting faster service start-up, metadata-heavy workloads, and cache warming. Its MLC NAND profile targets predictable performance and endurance for enterprise duty cycles, while the hot-swap architecture supports serviceability in dense nodes without extended maintenance windows. Integrated Power Loss Protection helps preserve in-flight data and metadata consistency under unexpected power events.

Why Choose the 0TS1844?

The 0TS1844 provides a balanced density-to-performance profile for organisations that need reliable boot and read-intensive NVMe capacity at scale. By deploying the 0TS1844 across standard U.2 bays, IT teams can streamline spares, harmonise firmware and security policies, and scale node counts with repeatable performance characteristics. The 0TS1844 also supports secure handling of sensitive data through self-encryption, helping align storage refresh cycles with enterprise governance requirements.

WD designs Ultrastar datacenter storage around continuous operation, controlled latency, and predictable reliability, with engineering that aligns to modern server chassis, hot-swap maintenance practices, and always-on operational standards for enterprise deployments.

Key Applications:

• Server boot volumes
• Read-intensive application tiers
• Cache and metadata acceleration
• Mixed-fleet U.2 NVMe standardisation
• Secure infrastructure services

At Happyware - Server Hardware you benefit from non-binding offers tailored to your deployment and an extended warranty to improve investment protection when standardising 0TS1844 across production clusters.