We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Rectangular black acetal CPU water block with copper base and G1/4 ports

Watercool

Watercool Heatkiller IV Basic CPU Water Block AMD AM4 Acetal Clean

SKU CH-0HWZ-5PHPK

A copper CPU water block for AMD AM4 sockets with a high-flow jet structure and tool-free mounting

  • Block MaterialCopper
  • ColorBlack
  • FeaturesWater coolers from the HEATKILLER® CPU series are among the
  • Up to 3°C lower CPU temperatures thanks to revised micro-fin cooling structure
  • Higher flow rates from enlarged jet structure and receptacles
  • Jet plate removed for simpler, more reliable coolant path
  • Tool-free Easy-Mount-System fits AMD sockets from 939 to AM4
  • 25 mm thread spacing accepts 16/10 and 19/13 compression fittings

Watercool Heatkiller IV Basic AM4 Block

The Watercool Heatkiller IV Basic is a CPU water block built for AMD AM4 sockets using a copper cold plate and acetal top. It targets enthusiasts assembling custom loops who want the revised cooling structure and high-flow design of the Heatkiller IV series in a clean black finish. Tool-free Easy-Mount hardware simplifies installation on compatible motherboards.

Builders with standard AM4 processors

This block fits mainstream and moderately overclocked AM4 CPUs using the supplied mounting kit. Buyers running older AMD platforms such as sockets 939, 940, AM2, AM2+, AM3, AM3+, FM2 or FM2+ should verify bracket availability before purchasing. Systems that require nickel-plated or transparent tops, or those needing pre-applied thermal paste, are not addressed by this specific acetal clean variant.

AM4 socket compatibility with 25 mm fitting spacing

The decisive specification is native AM4 readiness combined with a 25 mm thread distance that accepts both 16/10 and 19/13 compression fittings. If the loop uses a different socket or requires another thread pitch, a different water block or mounting kit must be selected.

Highlights

  • Up to 3°C lower CPU temperatures thanks to revised micro-fin cooling structure
  • Higher flow rates from enlarged jet structure and receptacles
  • Jet plate removed for simpler, more reliable coolant path
  • Tool-free Easy-Mount-System fits AMD sockets from 939 to AM4
  • 25 mm thread spacing accepts 16/10 and 19/13 compression fittings

Specifications

BrandWatercool
ModelMBVB01N37OCI3
Block MaterialCopper
ColorBlack
FeaturesWater coolers from the HEATKILLER® CPU series are among the most popular and top-selling CPU water coolers. Ever since the launch of the first HEATKILLER® CPU water cooler in 2001, the series has been constantly improved and optimised. The HEATKILLER® IV presents the most extensive alterations, so far.

Questions about this item

What thermal limit appears first when the Heatkiller IV Basic runs continuously at full load?

The revised micro-fin structure and integrated jet drop CPU temperature by up to 3 °C versus the previous model, so the processor’s own thermal ceiling is reached before the block saturates.

How loud or hot does the block get during all-day operation?

The block itself has no moving parts and adds negligible heat; system noise and loop temperature depend entirely on the pump, radiator and fans you pair with it.

Which fittings and tubing must I already own to connect this water block?

G ¼‑inch threads spaced 25 mm apart accept 16/10 mm or 19/13 mm compression fittings, so you need matching hard-tube or soft-tube sizes and two fittings.

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.