All-in-one liquid cooler THERMALTAKE MAGFloe 420 Ultra ARGB with 140 mm fans, 500–2000 RPM, white

The THERMALTAKE MAGFloe 420 Ultra ARGB is an all-in-one liquid CPU cooler in white designed for high-performance desktop systems. It combines a slim 27 mm radiator with a reinforced 20 mm copper chamber, an integrated high-performance pump and a 3.95” square LCD display for system monitoring and visual customization. The kit includes SWAFAN EX14 White fans with swappable blades and MagForce 2.0 quick-connect magnetic links for easier installation and cleaner cable management.

Advantages

This AIO cooler offers a compact radiator profile while increasing cooling surface and heat transfer through a thickened copper chamber and high-conductivity copper base plate. The included SWAFAN EX14 fans reach up to 2000 RPM for improved airflow and static pressure, and their swappable blade design supports both intake and exhaust orientations without compromising lighting effects. MagForce 2.0 quick connectors simplify daisy-chaining and reduce alignment issues, and the large 3.95” 480×480 LCD provides real-time monitoring and personalized visuals via TT RGB Plus 2.0 or the TT PlayLink mobile app.

Suitable for

• High-performance gaming and workstation PCs requiring efficient CPU cooling
• Users who want synchronized ARGB lighting and a customizable LCD on the pump cap
• Builds needing a tidy internal layout with simplified fan connections

When it may not be suitable

This liquid cooler is designed for 420 mm radiator mounts and requires a compatible case with support for 3×140 mm fan positions; it may not fit small or compact cases that lack space for a 420 mm radiator. Systems that cannot accommodate a 27 mm slim radiator with fan thickness or that lack a 5V addressable RGB header will not be able to use all lighting and synchronization features without additional controllers.

Key specifications

• Fan size: 140 × 140 × 25 mm
• Fan speed range: 500–2000 RPM (max)
• Maximum static pressure: up to 3.17 mm-H2O (standard blade)
• Maximum airflow: up to 81.6 CFM (standard blade)
• Noise level: under 34.5 dB-A with standard blades (higher in reverse blade mode)
• Radiator thickness: 27 mm (slim profile)
• Copper chamber thickness: 20 mm (thickened copper chamber)
• LCD display: 3.95” square, 480 × 480 resolution
• ARGB lighting: addressable RGB, compatible with TT RGB PLUS and major motherboard RGB software (5V addressable RGB header)

How to use

Mount the 420 mm radiator in a compatible case location and attach the three 140 mm SWAFAN EX fans in the desired orientation for intake or exhaust; blades are swappable to change airflow direction while preserving lighting. Install the pump unit on the CPU following the socket-specific mounting instructions and ensure the copper base plate makes full contact with the CPU surface using the provided thermal interface. Connect the fans using the MagForce 2.0 quick connectors to reduce cable routing, plug the pump power and ARGB connections to the motherboard or controller, then use TT RGB Plus 2.0 software or the TT PlayLink app to configure the LCD, lighting and monitor temperatures.

What to consider before purchase

• Confirm your case supports a 420 mm radiator and three 140 mm fans
• Check motherboard for a 5V addressable RGB header to fully use ARGB sync features
• Verify compatibility with your CPU socket (supports modern Intel and AMD sockets)

Recommendations

For optimal cooling and quiet operation, position fans to create a consistent airflow path through the radiator, use the standard blades for higher static pressure when pushing air through radiators, and set fan curves in BIOS or TT RGB Plus 2.0. Clean or rinse removable fan blades if needed, dry thoroughly and reapply the included bearing lubricant before reuse.