Koellichaam Alphacool NexXxoS Monsta radiator

The Alphacool NexXxos Monsta radiator is a high-performance heatsink designed for custom water-cooling loops. Constructed with copper chambers, fins and channels, the Monsta combines a compact footprint with an increased thickness to provide improved thermal transfer and higher flow capacity compared with thinner radiators. It is supplied in a black finish and built to fit systems that require a robust, full-copper cooling solution.

Advantages

All main parts of the NexXxos Monsta radiator are made from copper, which improves heat conductivity compared with mixed-material radiators. Separated, flat chambers guide coolant efficiently and allow high flow rates while the internal protective ledge prevents damage from overly long mounting screws. The radiator family supports multiple fan sizes and thickness options, enabling a balance between quiet operation and cooling performance. Models with a threaded 1/4" port (on UT60, NexXxos Monsta and some other variants) allow easy de-aeration or filling when paired with compatible fittings.

Suitable for

• Custom PC water-cooling loops requiring a full-copper radiator
• High-performance gaming or workstation systems with sustained loads
• Enclosures with limited space where versatile mounting options are needed

Key specifications

• Brand: Alphacool
• Model family: NexXxos Monsta
• Material: copper (chambers, fins, channels)
• Dimensions (approx.): 124 mm (width) × 160 mm (depth) × 86 mm (height)
• Finish: black
• Fan compatibility: 120 mm / 140 mm / 180 mm series depending on version
• Thickness: Monsta series — 80 mm
• MPN: 35314
• EAN: 4250197141802

How to use

Install the NexXxos Monsta radiator into your water-cooling loop following your case and loop layout. Fit appropriate fans and secure them using M3 screws; the radiator includes an internal protective ledge to prevent fin damage from screws inserted too far. Use the available threaded 1/4" port for de-aeration or filling when needed (where provided on the model). Ensure inlet and outlet fittings are positioned to provide a direct flow path through the separated chambers to maintain high flow rates.

Recommendations

For best results, pair the Monsta radiator with medium- to high-static-pressure fans and size fan speed to the thermal load: at low RPM the Monsta performs similarly to thinner radiators, while at higher RPM its extra thickness yields notably better cooling. When installing in tight spaces, use the multiple fitting positions to minimize angled fittings and maintain flow.