CBL-PWEX-1040 Supermicro 5cm Cable

High-Density GPU Auxiliary Power Splitter Cable for PCIe Accelerator Integration with the CBL-PWEX-1040

The CBL-PWEX-1040 is a short internal PCIe GPU power splitter designed to route a single PSU 8-pin GPU feed to dual 6+2-pin auxiliary inputs, supporting clean power harnessing in dense server and workstation chassis. In accelerator-focused platforms where CPU and GPU power domains must remain predictable, the CBL-PWEX-1040 helps standardise internal cabling while keeping the auxiliary power path close to the backplane and PCIe slot area.

Modern GPU nodes typically pair high-core-count CPU platforms with large DDR4/DDR5 memory footprints and PCIe Gen4/Gen5 expansion, where mechanical clearance and airflow are as critical as electrical delivery. With its 5 cm form factor, the CBL-PWEX-1040 is optimised for short-run distribution between a PSU GPU lead and adjacent PCIe add-in cards, reducing slack that can obstruct fans, complicate service loops, or interfere with tool-less retention in multi-GPU configurations. It is intended for internal distribution only and aligns with common auxiliary power requirements for PCIe accelerators used in AI, HPC, and VDI graphics workloads.

Why Choose the CBL-PWEX-1040?

The CBL-PWEX-1040 provides a controlled, space-efficient way to split one 8-pin source into two 6+2-pin PCIe connectors, enabling higher GPU density without redesigning the PSU harness. For enterprise deployment, the CBL-PWEX-1040 supports consistent build standards, predictable servicing, and scalable GPU node replication across racks where cable discipline impacts reliability and thermal stability.

Supermicro designs accessories such as the CBL-PWEX-1040 to integrate cleanly with validated server architectures, focusing on fit, connector compatibility, and datacentre-oriented compliance. RoHS and REACH alignment supports regulated build environments and long-term platform standardisation.

Key Applications:

• Multi-GPU AI training and inference nodes
• HPC accelerator servers
• VDI and virtual GPU platforms
• GPU-enabled workstation builds

At Happyware - Server Hardware you benefit from non-binding offers tailored to your deployment and power-distribution needs, helping you standardise the CBL-PWEX-1040 across builds with minimal procurement friction.