CP-9020271-EU Corsair RM1000x semi-passive 1000W ATX PSU

High-Efficiency ATX12V 3.1 Fully Modular 1000W Power Supply for GPU-Dense Workstations with the CP-9020271-EU

The CP-9020271-EU is a Corsair RMx Series RM1000x ATX power supply engineered for modern single- and dual-GPU towers and ATX-based edge systems that require ATX12V 3.1 electrical behavior and stable transient handling for current-generation GPU boost profiles. Its 12V-2x6 class 16-pin PCIe interface supports contemporary GPU power delivery while maintaining clean cabling and predictable load distribution across the 12V rail.

For platform integration, the CP-9020271-EU provides dual 8-pin EPS12V connectors for CPU VRM headroom in workstation-class boards, alongside four 8-pin PCIe connectors for flexible accelerator and add-in card topologies. Storage and I/O-heavy configurations benefit from high peripheral power density with 12 SATA connectors for multi-drive backplanes, NVMe carrier power needs, and auxiliary devices. 80 PLUS Gold efficiency, Cybenetics ETA ratings, and a 140mm fan with semi-passive Zero RPM mode help reduce thermal load in constrained chassis while maintaining acoustic discipline under mixed CPU/GPU utilization.

Why Choose the CP-9020271-EU?

The CP-9020271-EU delivers an enterprise-relevant balance of 1kW capacity, cabling modularity, and ATX12V 3.1 compliance, enabling higher performance-per-rack-unit for tower or edge deployments without oversizing the PSU footprint. Its connector set supports scalable GPU and storage expansion, while efficiency and controlled fan behavior improve system reliability by lowering internal temperatures and reducing sustained fan wear in continuous-duty environments.

Corsair designs the RMx platform with a focus on electrical stability, predictable acoustics, and build consistency aligned with modern data centre and lab standards, supporting clean integration, serviceability, and long-term operational confidence for IT-managed fleets.

Key Applications:

• Single- and dual-GPU workstation towers
• ATX-based edge and SMB servers
• Storage-dense ATX systems and NAS builds
• PCIe expansion and I/O-heavy builds
• AI development and visualization workstations

At Happyware - Server Hardware you benefit from non-binding offers tailored to your rollout requirements for the CP-9020271-EU, plus bulk order discount options when standardizing power delivery across multiple workstation or edge nodes.