All-in-one liquid cooler Lian Li Galahad II Trinity 12 cm Black

The Lian Li Galahad II Trinity 120 mm All-in-One liquid cooler is designed to improve CPU cooling performance in high-performance desktop PCs. This 120 mm model features a thicker 32 mm high-density aluminum radiator with 19 FPI double-wave fins, a 120 mm LCP fan with a 28 mm thickness and fluid dynamic bearing for stable, quiet operation, and a pump with three interchangeable cap designs for customizable lighting. The integrated controller in the pump works with L-Connect 3 for synchronized lighting and pump/fan speed control.

Advantages

The Galahad II Trinity provides enhanced heat dissipation thanks to its high-density 32 mm aluminum radiator and double-wave fin structure, while the high-performance LCP fan maintains airflow and RPM stability. The pump offers three interchangeable cap styles with dual lighting rings for flexible aesthetics. Installation is simplified by redesigned one-piece mounting backplates with fixed struts and included thermal paste control film and spreader. A 45° rotatable tubing connector allows flexible orientation during installation, and the pump’s built-in controller enables simplified cable routing and software control through L-Connect 3.

Suitable for

• High-performance gaming PCs and workstations where improved CPU cooling is required
• Small to medium-sized cases that support a single 120 mm radiator
• Builds that require customizable RGB lighting and clean cable management

Key specifications

• Type: All-in-one liquid cooler
• Fan diameter: 120 mm (28 mm thickness)
• Radiator thickness: 32 mm
• Radiator fin density: 19 FPI, double-wave design
• Fan bearing: copper shield / fluid dynamic bearing
• Lighting: interchangeable pump caps with dual-color rings and infinity/diffuser effects
• Controller: built into pump, compatible with L-Connect 3
• Product colour: Black

How to use

Mount the radiator and fan in a supported 120 mm position within your case, secure the pump block to the CPU using the included one-piece backplate and fixed struts, and apply thermal paste using the supplied control film and spreader to ensure correct coverage. Connect the fan to the pump using the short daisy-chain cable and attach the pump’s power and control cables to your system following the manual. Use L-Connect 3 to configure lighting effects and monitor pump/fan speeds.

Recommendations

For best cooling performance, install the radiator where it can receive unobstructed airflow and ensure the fan orientation matches your case airflow plan. Regularly check mounting screws and cable connections and use L-Connect 3 to monitor pump RPMs and adjust lighting or fan curves as needed.