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Pure Copper Water Cooling Block for Computer 40x40mm Water-Cooled Exchanger Endothermic Head for Liquid Water Cooler Heat Sink System for CPU Graphics Radiator Heatsink (1 Pack)
Kalolary

Kalolary Pure Copper Water Cooling Block

Bottom line: The Kalolary Pure Copper Water Cooling Block: Pure copper body, brazed into one piece after channel extrusion; main trade-off: 40 x 40mm plate is smaller than many modern desktop CPU heatspreaders.

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By , Founder & Editor-in-Chief · Listing data updated

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

  • ✓ Pure copper body, brazed into one piece after channel extrusion
  • ✓ 0.5mm internal fins increase surface area for heat transfer
  • ✓ Leak rate rated under 5x10-6 mbar.l/s
  • ✓ Compact 40 x 40 x 12mm footprint weighing only 35g
  • ✓ Both faces machined smooth for flat contact with the heat source

Cons

  • ✗ 40 x 40mm plate is smaller than many modern desktop CPU heatspreaders
  • ✗ Package includes only the block, with no mounting bracket or clamps
  • ✗ Fitting or barb size is not listed, so check tubing fit before you buy
  • ✗ No thermal performance or flow-rate figures published

Manufacturer description

Feature:-Size:40 (D) x 40 (W) x 12 (H) MM -Weight:35gPackage included:1 x Pure copper CPU Water cooling

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SpecPicks Verdict

SpecPicks scored Kalolary Pure Copper Water Cooling Block using a rating × review-volume × price-fit model applied to published specs and reviews across the cooling & fans category. Kalolary'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

  • √Processing: Pure copper
  • √Internal flow channel extrusion forming,brazing parts into a whole
  • √Internal fin thickness 0.5MM，Leak rate of less than 5X10-6 mbar.l/s parts
  • √Surface treatment: double side processing were smooth
  • √Applicable to computer CPU water, industrial inverter driver, laser head cooling, industrial control cabinet cooling

Full Specifications

BrandKalolary
ModelKalolary-Heatsink001
Unit Count1 Count
Part NumberKalolary-Heatsink001
Mounting TypeChassis Mount
√ProcessingPure copper
√Surface treatmentdouble side processing were smooth
Cooler Heatsink MaterialCopper
Item Dimensions L x W x H1.57"L x 1.57"W x 0.47"H
Cooler Heatsink CompatibilityUniversal fit for CPU cooling
Full listing titlePure Copper Water Cooling Block for Computer 40x40mm Water-Cooled Exchanger Endothermic Head for Liquid Water Cooler Heat Sink System for CPU Graphics Radiator Heatsink (1 Pack)

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Pure Copper Water Cooling Block for Computer 40x40mm Water-Cooled Exchanger Endothermic Head for Liquid Water Cooler Heat Sink System for CPU Graphics Radiator Heatsink (1 Pack) 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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Pure Copper Water Cooling Block for Computer 40x40mm Water-Cooled Exchanger Endothermic Head for Liquid Water Cooler Heat Sink System for CPU Graphics Radiator Heatsink (1 Pack)
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