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Bykski full cover GPU water block and black anodised aluminium backplate for Sapphire RX 6800 and 6900 Nitro+ cards

Bykski

Bykski Full Coverage GPU Water Block and Backplate for Sapphire RX 6800 / 6900 Super Platinum diy cooling

SKU CH-CX1R-WVG8W

Full-coverage water block and backplate directly cools GPU, memory and VRM on compatible Sapphire RX 6800 and 6900 cards

  • Product typeCPU Block
  • Full GPU core cooling via direct contact copper cold plate
  • VRM and memory chilled by full-coverage block design
  • Electroplated high-purity copper resists oxidation long-term
  • High-flow layout enables serial or parallel loop configs
  • Black anodised aluminium backplate adds rigidity and style

Full-coverage GPU water block and backplate

This Bykski block directly cools the GPU core, graphics memory and voltage regulator modules on compatible Sapphire RX 6800 and 6900 Nitro+ cards. It uses electroplated high-purity copper with an acrylic top and a black anodised aluminium backplate that does not contact coolant. G 1/4in threads allow flexible loop routing.

For custom-loop builders

Suits enthusiasts building a custom water-cooling loop who own a Sapphire RX 6800 Nitro+ or RX 6900 Nitro+ and want full-coverage cooling for core, memory and VRM. Not for owners of reference-design cards, other partner models or any GPU outside the listed compatibility list. Stock backplates are not guaranteed to fit due to mounting variances.

Verify exact PCB layout before ordering

Check the entire PCB picture against your specific card to confirm compatibility, as the block only fits the listed circuit board designs. Ensure your loop uses G 1/4in fittings and plan port orientation for parallel or serial flow. Confirm clearance for the acrylic top and aluminium backplate inside your case.

How it compares

Measured against everything we stock in Heatsinks & Water Blocks, at today’s prices. Recalculated every night.

Price $177.99
Pricier than about 91% of the 609 comparable items (median $15.99).

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Specifications

Product
Product typeCPU Block

Questions about this item

What card models must I already own for this water block to fit?

It is designed for Sapphire RX 6800 Nitro+ and Sapphire RX 6900 Nitro+ boards; verify your exact PCB layout before purchasing.

Will my existing G 1/4in fittings connect to this block?

Yes, the block uses standard G 1/4in threads so your current fittings will screw straight in.

How can I confirm the block is cooling the GPU, memory and VRM correctly after installation?

Monitor core, memory and VRM temperatures under load; they should sit well below the card’s stock air-cooled figures.

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