PWS-1K23A-SQ Supermicro Active 1200W 1U PSU

High-Performance 1U Redundant Hot-Swap Power Supply Module with PMBus Telemetry using the PWS-1K23A-SQ

The PWS-1K23A-SQ is a 1200W 1U redundant hot-swap PSU module engineered for Supermicro rack platforms where continuous uptime depends on fault-tolerant power delivery and predictable service procedures. Designed for dual-redundant server power bays, it enables in-service replacement without taking the host offline, supporting data centre operations that prioritise controlled maintenance windows and rapid recovery.

For infrastructure monitoring and automation, the PWS-1K23A-SQ integrates PMBus v1.2 power management, enabling out-of-band visibility into PSU status, power metrics, and health signals for fleet-level observability. Active PFC supports stable input behaviour across enterprise power environments, while integrated protection functions (OVP, UVP, OCP, SCP) help isolate electrical faults before they propagate to sensitive CPU, memory, and PCIe subsystems. This architecture aligns with dense compute nodes and storage servers where power integrity directly affects platform stability and overall availability.

Why Choose the PWS-1K23A-SQ?

The PWS-1K23A-SQ delivers a high density-to-reliability profile for 1U systems by combining redundant hot-swap serviceability with telemetry-driven operations. It is well suited for standardised deployments where consistent PSU behaviour, predictable replacement logistics, and monitoring integration reduce operational risk and simplify scaling across racks.

Supermicro designs power modules with a pragmatic data centre engineering philosophy: compatibility with validated server chassis, robust fault protection, and manageable thermals for sustained operation within 0–50°C environments. This supports enterprise maintenance models and aligns with modern monitoring and compliance practices.

Key Applications:

• 1U redundant PSU replacement and spares strategy
• Data centre uptime and maintenance operations
• PMBus-integrated power and health monitoring
• High-density compute and virtualisation nodes
• Storage servers requiring resilient power delivery

At Happyware - Server Hardware you benefit from non-binding offers tailored to your deployment and procurement requirements, helping you standardise on the PWS-1K23A-SQ across projects with clear technical alignment. For long-lived infrastructure, extended warranty options up to 6 years provide additional planning security for the PWS-1K23A-SQ lifecycle.