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Black copper radiator 240mm with dual 120mm fan mounts and four G1/4 ports

Alphacool

Alphacool NexXxos ST30 Full Copper X-Flow Radiator 240mm 30mm Black G1/4

SKU CH-664V-8WFGV

Full-copper 240 mm radiator with X-flow chambers, dual 120 mm fan mounts, four G1/4 ports and 30 mm thickness

  • TypeRadiator

Size 240mm

Struck-through versions exist but are not stocked here.

  • Full copper chambers, fins and channels improve thermal transfer
  • X-Flow design supports high coolant flow rates
  • 240 mm length fits dual 120 mm fans
  • Four G1/4 threads allow flexible loop routing
  • 30 mm thickness keeps case compatibility high

240 mm X-Flow Copper Radiator

The Alphacool NexXxos ST30 is a 240 mm dual-fan radiator built for custom water-cooling loops. Its full-copper construction covers fins, channels and end chambers, while steel side panels add rigidity. Four G1/4 threads give flexible port routing for any loop order.

Upgrade from aluminium or partial-copper cores

Builders moving from radiators that use aluminium fins or brass-only chambers gain the thermal conductivity of copper throughout the entire fluid path. The jump matters when loop restriction is low and pump head can exploit the X-Flow internal geometry.

Straightforward G1/4 installation

Standard G1/4 fittings thread directly into the four ports without adapters. The 30 mm thickness fits most 120 mm fan mounts, though tight chassis may need clearance checks for the 293 mm overall length. Copper construction adds weight, so secure all mounting points to avoid stress on acrylic or glass panels.

Highlights

  • Full copper chambers, fins and channels improve thermal transfer
  • X-Flow design supports high coolant flow rates
  • 240 mm length fits dual 120 mm fans
  • Four G1/4 threads allow flexible loop routing
  • 30 mm thickness keeps case compatibility high

Specifications

TypeRadiator

Other versions of this model

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Questions about this item

Will the 293 mm by 124 mm footprint with 30 mm thickness fit my 240 mm dual-fan mounting points?

Yes, the radiator measures 293 mm long, 124 mm wide and 30 mm thick, matching standard 240 mm dual 120 mm fan mounts.

How do I connect tubing to the four G1/4 threads without cross-threading the brass ports?

Hand-tighten each fitting into the brass G1/4 threads first, then add a quarter turn with a spanner; the copper chambers seal reliably without over-torquing.

When should I plan to flush or replace the coolant in this full-copper X-Flow radiator?

Flush the loop annually; the copper fins, channels and chambers resist corrosion, so the radiator itself only needs replacement if physical damage occurs.

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