0TS1877 WD Ultrastar DC SN840 3.84TB U.2 NVMe 2.5" Server SSD

High-Density NVMe U.2 Datacenter SSD for Read-Optimised Tiers with the 0TS1877

The 0TS1877 is a WD Ultrastar DC SN840 internal datacenter SSD built for server boot volumes and read-intensive application tiers where low latency and predictable QoS are critical. In a 2.5in U.2 hot-swap form factor, the 0TS1877 integrates cleanly into enterprise backplanes and storage nodes, enabling serviceability without downtime and consistent deployment across mixed server fleets.

Architecturally, 0TS1877 leverages PCIe NVMe connectivity to remove SAS/SATA bottlenecks, delivering up to 3311 MB/s read and 780k IOPS 4K random read for metadata-heavy and cache-centric patterns common in virtualization and database acceleration. The 3.84TB TLC NAND design balances capacity and endurance at 1 DWPD over 5 years (7008 TBW), while Power Loss Protection and Secure Erase support datacenter integrity requirements. With a 6W idle and 18W active profile, 0TS1877 fits power-governed racks where performance-per-watt and thermal headroom affect node density.

Why Choose the 0TS1877?

The 0TS1877 provides a practical density-to-performance ratio for boot, caching, and read-dominant tiers, combining hot-swap operational simplicity with NVMe throughput that scales with modern CPU platforms and PCIe fabrics. Designed for 24/7 duty cycles and predictable fleet behaviour, the 0TS1877 supports resilient rollouts in virtualized clusters, database front-end caching, and tiered storage architectures where service windows are limited.

WD engineering focuses on enterprise reliability and standardized datacenter integration, pairing TLC NAND management with protective features such as Power Loss Protection and secure sanitization. With 2.5M hours MTBF and alignment to current U.2 NVMe server standards, the platform supports consistent lifecycle management across dense compute and storage nodes.

Key Applications:

• Server boot and OS volumes
• Virtualization datastores
• Database caching and acceleration
• Read-intensive application tiers
• High-availability hot-swap storage pools

At Happyware - Server Hardware you benefit from non-binding offers tailored precisely to your deployment plan for the 0TS1877 and an extended warranty option up to 6 years to secure long-term datacenter operations.