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

The Lian Li Galahad II Trinity 12 cm Black is an all-in-one liquid cooler designed to provide efficient CPU cooling with a compact 120 mm ARGB PWM fan and a 27 mm thick, high-density aluminum radiator. It features a pump with three interchangeable cap designs, daisy-chainable ARGB fans, a 45° rotatable tubing connector for flexible installation, and redesigned one-piece mounting backplates compatible with mainstream CPU sockets including AM4 and AM5.

Advantages

The Galahad II Trinity combines improved cooling performance over previous models with customizable aesthetics via dual-ring ARGB lighting and interchangeable pump caps. Its high-density radiator with 20 FPI and single-wave fins balances airflow and thermal transfer, while fluid dynamic bearings in the 120 mm fan ensure stable, quiet operation. Integrated pump controller and L-Connect 3 support allow unified control of lighting and pump/fan speeds.

Suitable for

• Cooling gaming and workstation CPUs in mid-tower and compact builds
• Systems requiring ARGB lighting and synchronized effects
• Builders who need flexible mounting orientation and easy installation

Key specifications

• Type: All-in-one liquid cooler
• Fan diameter: 120 mm (25 mm thickness)
• Maximum air pressure: 3.66 mmH2O
• Bearing type: Fluid Dynamic Bearing
• Radiator thickness: 27 mm; fins: single-wave, 20 FPI
• Supported sockets: Socket AM4, Socket AM5
• Product colour: Black
• Controller: Built into pump; compatible with L-Connect 3

How to use

Mount the radiator and fans to an appropriate case location (front, top, or rear) using the included screws, then attach the pump block to the CPU with the provided one-piece backplate and fixed struts. Connect the ARGB PWM fans to the pump using the short daisy-chain cable and plug the pump into the motherboard power/header as instructed. Use the supplied thermal paste control film and spreader to apply the correct amount of thermal compound before securing the pump block. Install the tubing in any preferred orientation made possible by the 45° rotatable connector.

Recommendations

For optimal cooling and quiet operation, install the radiator where airflow is consistent, ensure the fans are oriented for proper intake or exhaust according to your case layout, and use L-Connect 3 to configure fan curves and ARGB lighting. Verify compatibility with your case dimensions and CPU socket (AM4/AM5) before installation.