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Alphacool NexXxoS XT45 Full Copper 420mm Radiator (14170)
Alphacool

Alphacool NexXxoS XT45 Full Copper 420mm Radiator (14170)

Bottom line: The Alphacool NexXxoS XT45 Full Copper 420mm Radiator: Full copper core and fins, not aluminum, for higher heat transfer; main trade-off: 420mm needs a case with explicit 3x140mm rad support.

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Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

Pros & Cons

Pros

  • ✓ Full copper core and fins, not aluminum, for higher heat transfer
  • ✓ 420mm surface (3x140mm) targets high-wattage CPU and GPU loops
  • ✓ 45mm thickness balances capacity against thin-rad clearance limits
  • ✓ Standard G1/4" ports fit most compression and barb fittings
  • ✓ Mounting kit included, so no separate screw kit purchase

Cons

  • ✗ 420mm needs a case with explicit 3x140mm rad support
  • ✗ 45mm depth plus fans can foul tall RAM or top panels
  • ✗ Full copper raises weight, so bracket support matters
  • ✗ Fans are not included at this price

Manufacturer description

Mounting Kit:Included, Features:G1/4" thread

SpecPicks Verdict

SpecPicks scored Alphacool NexXxoS XT45 Full Copper 420mm Radiator using a rating × review-volume × price-fit model applied to published specs and reviews across the cooling & fans category. Alphacool's cooling & fans lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for cooling & fans of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • The new Alphacool Nex Xxos radiators, a name that stands for experience and quality has come to bring a fresh breeze to the radiator market
  • Every user of a water cooling system needs a radiator and everyone has different requirements towards the heat exchanger
  • Of course the customer always demands the best in its class
  • The Alphacool Nex Xxos radiators have come to compete with and to beat the best in their class and to be the best radiator in all sizes
  • No more endless choices without a clear class leader

Full Specifications

BrandAlphacool
Model14170
Unit Count1 Count
Part Number14170
Number of Items1
Number of Packs1
Warranty DescriptionOne year manufacturer
Cooler Heatsink MaterialCopper
Item Dimensions L x W x H18.43"L x 5.67"W x 1.81"H
Cooler Heatsink CompatibilityWatercooling G1/4"
Global Trade Identification Number04250197141703

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Alphacool NexXxoS XT45 Full Copper 420mm Radiator (14170) is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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