PWS-1K43F-1R Supermicro Active 1400W 1U Server PSU

High-Availability 1U Redundant Hot-Swap Power Supply Module with the PWS-1K43F-1R

The PWS-1K43F-1R is a 1400W 1U redundant hot-swap PSU module engineered for Supermicro rack server platforms where continuous uptime and predictable power delivery are mandatory. Designed for dense compute and storage nodes, the PWS-1K43F-1R supports high transient loads while maintaining stable output for CPU- and accelerator-focused configurations operating in shared power domains.

With 80 PLUS Platinum efficiency, the PWS-1K43F-1R reduces thermal load and helps keep fan curves and rack-level cooling budgets under control in high-density rows. Digital monitoring and control via PMBus 1.2 enables integration into standard management workflows for telemetry, power capping alignment, and fleet-level health tracking. Active PFC improves input current behavior, supporting cleaner power characteristics in enterprise PDUs. Protection features including OCP, OVP, and SCP provide hardware-level safeguards to minimize impact from fault conditions and to support service continuity during component replacement.

Why Choose the PWS-1K43F-1R?

Choosing the PWS-1K43F-1R supports a resilient 1U deployment model by combining redundant hot-swap serviceability with a 1.4kW capacity profile optimized for dense nodes. The PWS-1K43F-1R enables maintenance without scheduled downtime, strengthens availability targets for clustered services, and aligns with scalable operations where standardized PSU modules simplify spares strategy and reduce mean time to repair.

Supermicro power engineering focuses on datacentre-ready efficiency, electrically robust design, and tight integration with platform management standards. The PWS-1K43F-1R reflects this approach through PMBus-based control, protection circuitry, and form-factor compatibility that supports modern rack architectures and routine field replacement procedures.

Key Applications:

• 1U rack server power redundancy
• High-availability datacentre deployments
• Dense compute nodes requiring 1400W capacity
• Storage servers with high peak power draw

At Happyware - Server Hardware you benefit from non-binding offers tailored precisely to your deployment and from bulk order discounts that support standardized rollouts of the PWS-1K43F-1R across racks and sites.