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Black full-copper radiator 532x124x30mm four 120mm fan slots G1/4 ports 853g

Alphacool

Alphacool 14231 NexXxos ST30 X-Flow 480 120x4 Black diy cooling

SKU CH-HC7B-5CSGC MPN 14231

Full-copper radiator with X-Flow chambers for high flow rates, 480 mm length, 30 mm thick, four 120 mm fan mounts, four G1/4″ ports, 853 g

  • Pump bearing28.6
  • Pump capacityRAD Alphacool NexXxoS ST30 Full Copper X-Flow 480 mm Radiato
  • Pump noise levelRadiatoren aktiv
  • Radiator material94,99
  • Product typeRadiator
  • Full-copper construction boosts thermal transfer
  • X-Flow chambers distribute coolant evenly across all channels
  • 480 mm length fits four 120 mm fans
  • Three inlet/outlet positions per side simplify tube routing
  • 853 g weight keeps loop light for easy mounting

Full-Copper X-Flow Radiator 480

The Alphacool 14231 NexXxos ST30 X-Flow 480 is a 480 mm radiator built for custom liquid-cooling loops. Its chambers, channels and fins are all copper, with steel side panels and brass G1/4 threads. Four 120 mm fan positions provide the airflow path for high heat-load systems.

X-Flow Chamber Design Limits

Identical beveled chambers on both ends jet coolant through every channel simultaneously, a layout made for high flow rates. The design reduces the need for angled fittings, preserving flow velocity. Three port positions per chamber give routing flexibility, though the ST30 variant omits the extra chamber ports found on thicker models.

30 mm Thickness Capacity

At 30 mm thick and 532 x 124 mm overall, the radiator fits standard 120 mm quad-fan mounting grids while keeping case clearance manageable. The slim profile handles typical CPU-plus-GPU loops well; builds with multiple high-wattage GPUs or extreme overclocking headroom will hit thermal limits sooner than with 45 mm or 60 mm variants.

How it compares

Measured against everything we stock in Heatsinks & Water Blocks, at today’s prices. Recalculated every night.

Price $120.99
Pricier than about 89% of the 609 comparable items (median $15.99).

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Specifications

Product
Product typeRadiator
Size & build
Radiator material94,99
Compatibility
Compatible socketsNo
Environment & compliance
Pump noise levelRadiatoren aktiv
More details
Pump bearing28.6
Pump capacityRAD Alphacool NexXxoS ST30 Full Copper X-Flow 480 mm Radiator
Reservoir capacityNo

Questions about this item

Should I pick the 30 mm, 45 mm or 60 mm thick version for my build?

The ST30 model is 30 mm thick and measures 532 x 124 x 30 mm; thicker 45 mm and 60 mm variants exist in the same 120 mm series if you need more surface area.

What does the 480 mm length mean for actual cooling performance?

At 480 mm long the radiator holds four 120 mm fans, giving a large copper fin area that dissipates more heat per pass than shorter models.

How do the four G1/4″ ports affect loop flow?

Each chamber has three fitting positions on both inlet and outlet, letting you route tubing straight through and reduce angled adapters for higher flow rates.

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