PWS-1K05A-1R Supermicro 1000W 1U PSU

High-Efficiency 1U Redundant Hot-Swap AC Power Module engineered for dense racks with the PWS-1K05A-1R

The PWS-1K05A-1R is a Supermicro 1U redundant hot-swap AC power module designed to stabilise power delivery in high-density rack servers where uptime and serviceability are non-negotiable. Built for modern enterprise platforms that consolidate CPU-heavy virtualisation and GPU-accelerated nodes, it supports continuous operation through redundant PSU architectures and tool-less replacement without disrupting production workloads.

With 1000W capacity and 80 PLUS Titanium efficiency, the PWS-1K05A-1R targets lower thermal output and reduced facility power overhead, which directly benefits tightly packed chassis hosting high-core-count CPUs, large memory footprints, and PCIe expansion. PMBus 1.2 telemetry enables integration with management stacks for proactive monitoring of load, voltage, temperature, and fault states, aligning power governance with platform-level reliability practices across compute and storage tiers.

Why Choose the PWS-1K05A-1R?

The PWS-1K05A-1R supports a strong density-to-resilience profile by combining redundant 1U power design with hot-swap serviceability, enabling maintenance windows to shrink while preserving fleet availability. For standardised data centre builds, it provides predictable power behaviour, monitoring visibility, and protection controls that help scale deployments without introducing power-related variability.

Supermicro engineering prioritises interoperability with enterprise rack standards, consistent electrical performance, and compliance-driven manufacturing. The module’s protection suite and regulatory approvals align with data centre operational requirements, supporting long-term reliability across mixed workload clusters and controlled change management processes.

Key Applications:

• Rack server PSU replacement and spares standardisation
• Virtualisation and private cloud clusters
• HPC and AI training/inference nodes
• Distributed storage and hyperconverged infrastructure
• Remote monitoring and power telemetry integration

At Happyware - Server Hardware you benefit from non-binding offers tailored to your configuration and rollout plan for the PWS-1K05A-1R, helping you align spares strategy and deployment timelines with operational requirements. For large-scale refresh projects, bulk order discount options support efficient procurement of PWS-1K05A-1R units across multiple racks and sites.