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Alphacool NexXxoS ST30 280mm full copper radiator with dual 140mm fan slots

Alphacool

Alphacool NexXxoS ST30 Full Copper 280mm Radiator

SKU CH-KTE1-YBH6M

ST30 full-copper 280 mm radiator with dual 140 mm fan slots and separated chambers for directed coolant flow

  • TypeRadiator
  • Radiator Size280 mm
  • Fan Size2 Fan Slots (140 mm)

Size 280mm

  • Full copper construction improves thermal transfer across fins, channels and chambers
  • 280 mm radiator fits two 140 mm fans for high airflow cooling
  • Slim 30 mm profile eases installation in tight chassis spaces
  • Included M3 mounting screws in 30 mm and 35 mm lengths cover standard and thick fan setups
  • Separated internal chambers direct coolant flow for consistent heat dissipation

280 mm Full-Copper Radiator

The Alphacool NexXxoS ST30 is a 280 mm liquid-cooling radiator built entirely from copper, including its chambers, fins and channels. Separated internal chambers direct coolant flow for efficient heat exchange. It accepts two 140 mm fans and includes two sets of M3 mounting screws measuring 30 mm and 35 mm.

For dual-140 mm fan loops; not for single-fan builds

This radiator suits custom-loop builders who have space for a 280 mm unit and want the thermal benefits of full-copper construction. It is not for systems limited to a single 140 mm fan location or for builds that require a different radiator length to match case mounting points.

280 mm length with two 140 mm fan slots

The decisive specification is the 280 mm size paired with dual 140 mm fan slots, which determines whether the radiator fits the available mounting area in your case and matches your planned fan configuration.

Highlights

  • Full copper construction improves thermal transfer across fins, channels and chambers
  • 280 mm radiator fits two 140 mm fans for high airflow cooling
  • Slim 30 mm profile eases installation in tight chassis spaces
  • Included M3 mounting screws in 30 mm and 35 mm lengths cover standard and thick fan setups
  • Separated internal chambers direct coolant flow for consistent heat dissipation

Specifications

TypeRadiator
Radiator Size280 mm
Fan Size2 Fan Slots (140 mm)

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Questions about this item

Which NexXxoS ST30 radiator size matches a dual 140 mm fan layout?

The 280 mm version provides two 140 mm fan slots, matching cases and mounts designed for dual 140 mm fans.

How does the full-copper construction affect cooling performance in a live loop?

Copper chambers, fins and channels transfer heat faster than mixed-metal designs, so coolant temperatures drop more quickly under sustained load.

What does the G1/4 thread standard cap in practice for this radiator?

Standard G1/4 ports accept any G1/4 fitting, limiting the connection to the fitting's inner diameter rather than the radiator itself.

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