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Nickel-plated copper GPU water block with acrylic top and black anodized aluminium backplate for RTX 4090 Strix/TUF

Raymnmod

Raymnmod GPU Water Block for Asus ROG Strix/TUF RTX 4090

SKU CH-F50J-SH14B

A full-coverage water block that cools the GPU, memory and VRM on Asus ROG Strix and TUF RTX 4090 cards

  • TypeGPU Water Block
  • Full-coverage cooling for GPU, memory and VRM
  • Nickel-plated copper block resists oxidation
  • High-flow design supports serial or parallel loops
  • Black anodised aluminium backplate adds rigidity
  • 5 V addressable RGB lighting included

Raymnmod Water Block for Asus RTX 4090

This full-coverage water block fits Asus ROG Strix and TUF Gaming GeForce RTX 4090 graphics cards. It replaces the factory air cooler to transfer heat from the GPU core, memory modules and voltage regulators directly into a liquid loop. Builders planning a custom loop for these specific board layouts use it to lower operating temperatures.

Nickel-plated copper base with acrylic top

The block uses high-purity copper electroplated with nickel to resist oxidation while an acrylic top provides visual access to the flow path. A high-flow internal design supports running multiple blocks in series without excessive restriction. Top and bottom G 1/4-inch ports allow parallel or serial plumbing configurations. A black anodised aluminium backplate adds rigidity and covers the rear of the PCB without contacting coolant.

Pre-applied thermal material and addressable RGB

Mounting hardware, two stop fittings and thermal grease are included so installation proceeds once the original cooler is removed. The bundled 5 V A-RGB LED strip connects to a motherboard addressable header; it will not work with 12 V RGB headers. Builders must verify their specific PCB revision matches the supported layout before ordering because Asus uses multiple board designs for these models.

Highlights

  • Full-coverage cooling for GPU, memory and VRM
  • Nickel-plated copper block resists oxidation
  • High-flow design supports serial or parallel loops
  • Black anodised aluminium backplate adds rigidity
  • 5 V addressable RGB lighting included

Specifications

TypeGPU Water Block

Questions about this item

Will the nickel electroplated copper block need replating or corrosion maintenance later?

The nickel electroplating on the high-purity copper prevents oxidation, so no replating is required under normal coolant conditions.

What is the first thermal limit reached during sustained loads on the RTX 4090 core, memory and VRM?

The full-coverage design cools the GPU core, memory and VRM together, so the coolant temperature becomes the limiting factor before any single component throttles.

How much heat does the block add to the loop and does the acrylic top affect coolant temperature during all-day runs?

The block transfers heat from the GPU core, memory and VRM into the loop; the acrylic top does not insulate, so coolant temperature rises only with total system heat load.

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