HPE P89898-B21 16-Pin PCIe Dual-GPU Power Cable for ProLiant DL345 Gen12
Overview
The HPE P89898-B21 is a factory-new, OEM power cable designed to route GPU power from the motherboard of the HPE ProLiant DL345 Gen12 server to dual PCIe add-in cards. Rated at 450W and terminated with a 16-pin connector on the GPU end, this cable bridges the server's onboard power delivery architecture to high-draw accelerator or GPU cards without requiring aftermarket adapters or third-party workarounds. If you are spec'ing a DL345 Gen12 for GPU-accelerated workloads — inference, video analytics, or parallel compute — this is the cable that completes the power path to your cards.
At 0.24 lb, the P89898-B21 (often searched as P89898 B21) adds negligible weight to the chassis build, and its PCIe interface ensures direct compatibility with the Gen12 platform's internal power headers. Using a genuine HPE cable here matters: the DL345 Gen12's onboard power delivery and firmware are tuned to OEM cabling; third-party substitutes carry a real risk of incompatible connector keying or under-spec'd wire gauge at 450W sustained draw.
Key Features
- 450W Dual-GPU Power Rating: delivers enough headroom for two mid-range to high-end PCIe accelerators simultaneously — relevant for edge AI inference nodes or multi-stream video analytics servers where a single GPU is not sufficient.
- 16-Pin PCIe Connector: matches the high-density power connector spec used on current-generation GPU cards, eliminating the need for daisy-chain adapters that can introduce resistance and thermal risk under sustained GPU load.
- OEM Fit for ProLiant DL345 Gen12: designed and validated for the DL345 Gen12 motherboard's internal power headers — no guesswork on connector clearance, cable routing length, or airflow interference inside the chassis.
- 0.24 lb Assembly Weight: lightweight construction leaves no measurable impact on chassis weight calculations for rack density planning.
Integration & Compatibility
This cable is specified for the HPE ProLiant DL345 Gen12 platform. It is not a universal PCIe power cable — do not assume cross-platform compatibility with other ProLiant generations or non-HPE server platforms without verifying the motherboard power header layout. If you are deploying rack servers with GPU acceleration for video analytics or NVR workloads, confirm the DL345 Gen12 is the target chassis before ordering. For builds requiring more than two GPUs or cards exceeding the 450W aggregate draw, review the DL345 Gen12 platform power budget and consider additional HPE power options from the server accessories line. Consult the power supply capacity of your DL345 Gen12 configuration to ensure the PSU headroom supports full 450W cable utilization under sustained load.
Frequently Asked Questions
Q: What server platform is the P89898-B21 designed for?
A: The P89898-B21 is designed for the HPE ProLiant DL345 Gen12 server. It is an OEM cable specific to that platform's motherboard power header layout and should not be assumed compatible with other ProLiant generations without verification.
Q: What is the power rating of the P89898-B21?
A: The cable is rated at 450W and supports two GPU/PCIe add-in cards via a 16-pin PCIe connector.
Q: Can I use a third-party PCIe power cable instead of the P89898-B21?
A: HPE OEM cables are validated for connector keying, wire gauge, and routing within the DL345 Gen12 chassis. Third-party substitutes are not validated by HPE and carry risk of connector incompatibility or under-spec'd wire gauge at sustained 450W draw. Using the genuine part is the lower-risk path.
Q: What does the UNSPSC code 26121629 indicate?
A: UNSPSC 26121629 classifies this product under power cables and cords for electronic/computer equipment — consistent with its function as an internal server power cable.
Q: How much does the P89898-B21 weigh?
A: The cable weighs 0.24 lb, making it a negligible addition to chassis weight in rack density planning.
The P89898-B21 is one of those parts that gets overlooked until it's missing at build time — a 16-pin PCIe power cable rated at 450W, routed from the DL345 Gen12 motherboard to dual GPU add-in cards. It is not glamorous, but without it, your GPU acceleration build stalls at the chassis level before the first driver loads.
Technical Highlights:
- 450W Aggregate Rating: sufficient headroom for two mid-range PCIe accelerators running simultaneously — important in multi-stream video analytics or AI inference deployments where GPU utilization stays high for extended periods.
- 16-Pin PCIe Interface: matches the high-density connector spec on current-gen GPU cards, avoiding the daisy-chain adapter arrangements that introduce resistance and become a thermal concern at sustained draw.
- OEM Platform Fit: validated for the DL345 Gen12 internal header layout — connector keying, cable length, and routing are designed for this chassis, not adapted from a generic part.
Deployment Considerations:
- Confirm your DL345 Gen12 PSU configuration has adequate headroom before saturating the cable's 450W rating — the cable itself is not the bottleneck, but the platform power budget may be if the server is already heavily loaded.
- This cable is specific to the DL345 Gen12; do not assume it fits earlier ProLiant DL345 generations or other ProLiant families without checking the motherboard header specification against this part number.
Best fit for a DL345 Gen12 configured as a GPU-accelerated edge inference node — video analytics, multi-camera AI processing, or similar workloads where two PCIe accelerators share a single power feed from the motherboard.
