PWS-2K20A-1R Supermicro Active 2200W PSU

High-Density 1U Redundant Hot-Swap Power Supply Module with PMBus Telemetry using the PWS-2K20A-1R

The PWS-2K20A-1R is a 2.2kW 1U redundant hot-swap PSU module engineered to stabilise power delivery in high-density rack servers and AI/GPU nodes where sustained high TDP operation is expected. With active PFC and an 80 PLUS Titanium efficiency profile, it reduces conversion losses and thermals at the rack level, supporting tighter power budgets and predictable cooling behaviour in modern data centres.

Designed for enterprise platforms with high PCIe device density, the PWS-2K20A-1R supports architectures where GPUs, high-core-count CPUs, and NVMe storage expand rapidly and load transients are common. PMBus 1.2 management enables digital telemetry and control for power shelves and server management stacks, providing visibility into PSU status and enabling policy-driven operations. Integrated protections including OCP, OVP, UVP, SCP, and OTP help maintain service continuity, while the 0–50°C operating range supports standardised deployments across mixed workload zones.

Why Choose the PWS-2K20A-1R?

The PWS-2K20A-1R delivers a strong density-to-performance ratio by consolidating 2.2kW into a 1U hot-swap module while maintaining redundancy for uptime-focused environments. Its PMBus-managed telemetry improves operational control at scale, supporting capacity planning and failure isolation, and the Titanium efficiency target aligns with enterprise objectives for power optimisation without sacrificing availability.

Supermicro designs power subsystems to integrate cleanly with server chassis, redundant power shelves, and data centre management practices, prioritising reliability, serviceability, and compliance with contemporary rack standards. The PWS-2K20A-1R follows this engineering approach with hot-swap maintenance workflows and digitally managed power characteristics suited to controlled, repeatable builds.

Key Applications:

• 1U redundant power shelves for rack servers
• AI/GPU compute nodes with high sustained load
• HPC clusters requiring power telemetry
• NVMe-heavy storage and PCIe expansion platforms

At Happyware - Server Hardware you benefit from non-binding offers tailored precisely to your deployment plan for the PWS-2K20A-1R, supporting accurate rollouts across racks and sites. For standardisation projects, bulk order discount options help optimise procurement for larger PWS-2K20A-1R quantities.