Lenovo 4B47A93185 SD550 SD555 GPU Duct & Filler KIT

Lenovo 4B47A93185 GPU Duct & Filler Kit for SD550 / SD555

Overview

The Lenovo 4B47A93185 is a GPU duct and filler kit designed for Lenovo ThinkSystem SD550 and SD555 server nodes. In high-density compute environments, proper airflow channeling is not optional — without the correct duct and filler hardware in place, GPU thermal performance degrades and the server may throttle or fault under load. This kit restores the intended airflow path when a GPU is installed or when a GPU slot is left unpopulated, ensuring the chassis maintains correct pressure balance across all components.

Compatibility

Designed for the Lenovo ThinkSystem SD550 and SD555 server nodes. These are dense, multi-node platforms typically deployed in HPC, AI inference, and high-throughput compute racks. Confirm your specific node revision and GPU configuration against Lenovo's SD550/SD555 hardware maintenance guide before ordering — duct geometry can vary by GPU bracket height and node generation. This part is not interchangeable with other ThinkSystem families such as the SD530 or SR-series rack servers.

Installation Notes

Weigh the node at 10 lb — handle with two people when servicing in a populated chassis. The kit ships from Mexico (country of origin: MX). Follow Lenovo's ESD precautions and thermal management guidelines from the SD550/SD555 hardware maintenance manual when seating duct components; incorrect duct placement will misdirect airflow and can cause localized hot spots on GPU memory or VRMs.