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Alphacool

Alphacool NexXxoS XT45 Full Copper 140mm Radiator 45mm 14168

SKU CH-1QK5-1SRSJ

A full-copper 140 mm radiator with separated chambers for high flow rates and G1/4 threads

  • TypeRadiator

Size 140mm

  • Full copper chambers boost thermal transfer
  • Separated chambers enable high flow rates
  • Flat chambers reduce length for flexible mounting
  • Three fitting positions per port simplify installation
  • 140 mm size with 45 mm thickness fits varied builds

NexXxoS XT45 Full Copper Radiator

The Alphacool NexXxoS XT45 is a full-copper water-cooling radiator built for custom-loop builders who want maximum thermal density in a single 140 mm unit. Its chambers, fins and channels are all made from copper, removing the thermal barrier found in mixed-metal designs. Separated internal chambers give coolant a directed path that supports high flow rates across the whole loop. The 45 mm thickness targets users who need more dissipation per fan slot than a slim radiator can provide.

45 mm thickness with G1/4 ports

The single specification that decides fit is the 45 mm core depth combined with standard G1/4 threads on both inlet and outlet. This dimension determines whether the radiator clears your case, fans and motherboard components when mounted. Three fitting positions are available on each end tank, letting you rotate angled adapters for tidy tubing runs without forcing sharp bends. Flat chamber ends reduce overall length, helping the unit sit closer to the chassis wall.

Mounts on 140 mm fan positions

The radiator installs on any case or bracket drilled for 140 mm fans, freeing you from proprietary mounting kits. Because the chambers are flat, the assembly sits closer to the frame, leaving more room for push-pull fan sets or thick cable bundles behind the motherboard tray. High flow capacity means the loop pump does not need to overcome restrictive channels, lowering noise at a given coolant temperature. Builders who need more surface area than a single 140 mm slot allows should plan for multiple radiators.

Highlights

  • Full copper chambers boost thermal transfer
  • Separated chambers enable high flow rates
  • Flat chambers reduce length for flexible mounting
  • Three fitting positions per port simplify installation
  • 140 mm size with 45 mm thickness fits varied builds

Specifications

TypeRadiator

Other versions of this model

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Questions about this item

How much heat can the 45 mm thick 140 mm radiator actually dissipate in a loop?

The 45 mm core depth and full-copper construction give high thermal capacity; real-world dissipation depends on fan speed, coolant flow and temperature delta, so match it to your component heat load.

What does the G1/4 thread limit in terms of fitting choice?

G1/4 is the industry-standard thread for custom-loop fittings; any G1/4 compression, barb or rotary fitting will seal directly without adapters.

What clearance does the 45 mm radiator plus fans need for mounting?

The radiator body is 45 mm thick; add the thickness of your chosen 140 mm fans and fitting clearance, then compare with your case’s radiator bracket allowance.

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