HPE DL300 GEN10+ GPU 8X6P CBL KIT - P39103-B21

HPE P39103-B21 DL300 Gen10+ GPU 8x6-Pin Cable Kit

Overview

The HPE P39103-B21 is the factory-specified internal cable kit for connecting GPU cards in HPE ProLiant DL300 Gen10 Plus servers. If you're adding or replacing a GPU in a DL300 Gen10+ platform and the required power harness wasn't included with the card, this kit closes that gap — eight 6-pin connectors provide the dedicated power paths GPU add-in cards require inside the chassis. Without it, GPU installation is incomplete regardless of slot availability. Weighing 0.45 lb, it ships factory-new and is matched to HPE's internal routing and connector specifications for this server generation.

Compatibility

Designed specifically for HPE ProLiant DL300 Gen10 Plus series servers — including the DL380 Gen10 Plus and related DL300-family platforms that support GPU expansion. This cable kit is not interchangeable with Gen9 or Gen10 (non-Plus) variants; connector keying and cable lengths are generation-specific. Confirm your server's service manual lists P39103-B21 as the required GPU power cable option before ordering — HPE publishes QuickSpecs per model that cross-reference the correct cable kit part number for each GPU configuration.

Installation Notes

Route cables per HPE's documented internal cable management guidelines for the DL300 Gen10+ chassis to avoid airflow obstruction across the GPU and adjacent PCIe slots. Ensure the server is fully powered down and discharged before connecting. The 6-pin connectors are keyed — do not force fit. Refer to the platform's server maintenance guide for the correct connector-to-GPU pin mapping if installing multiple GPUs simultaneously.