Air duct Lian Li AD-03 — chassis air channel accessory

The Lian Li AD-03 chassis air channel accessory is a purpose-built internal duct that guides airflow from intake points toward selected components inside a PC case. Designed to improve directed cooling without altering fan speed or configuration, the AD-03 helps focus fresh air where it is needed most, reducing hot spots and supporting more efficient thermal management in compatible Lian Li cases or other enclosures with matching mounting points.

Advantages

The AD-03 offers a compact and rigid pathway for intake air, minimizing turbulence and dispersion inside the chassis. Its form factor enables targeted airflow delivery to components such as motherboard VRMs, M.2 storage, or GPU areas, which can lower local temperatures and stabilize system performance under load. The accessory is simple to install and uses the case’s existing mounting points, avoiding the need for additional fans or power connections.

Suitable for

• Directing intake airflow to CPU VRM and power delivery areas
• Improving cooling for M.2 NVMe SSDs and small storage bays
• Reducing localized GPU intake temperatures in compact builds
• Optimizing airflow in cases with constrained internal layouts

Key specifications

• Function: internal air channel to direct intake airflow
• Compatibility: designed for use with compatible chassis that provide matching mounting points
• Material and finish: rigid construction suitable for stable mounting inside a PC chassis
• Form factor: compact duct shape to fit between intake area and targeted components
• Installation: attaches to existing case mounting locations without additional power connections

How to use

Position the AD-03 within the chassis so the inlet aligns with an intake fan or vent and the outlet points toward the component you want to cool. Secure the duct using the case’s designated mounting points or supplied fasteners, ensuring it does not obstruct other components or cabling. After installation, verify unobstructed fan airflow and confirm that cables are routed clear of the duct to maintain effective air passage.

Usage recommendations

For best results, pair the AD-03 with a well-balanced intake-exhaust configuration and ensure intake fans provide sufficient airflow at the duct inlet. Check component clearances before installation and periodically inspect for dust accumulation inside the duct to maintain airflow efficiency.