Bykski
Bykski GPU Water Block For Galax RTX 4090 HOF OC Lab Plus
Best premium cooling for high performance graphics card enthusiasts.
This full coverage block directly cools the graphics cards core (GPU), graphics memory (RAM), and voltage regulator modules (VRM). By directly cooling these components, you can achieve great temperatures and reach higher overclocks or extend the overall lifespan of your card by running at below-factory temperatures. The block is constructed of high-purity copper that is nickel electroplated to prevent oxidation. A high-flow design is used to allow multiple blocks to run in series. Top and bottom ports can be used to configure parallel or serial designs in multi-block setups.
$136.78
Owner Satisfaction
4.3
/ 5
Category Rank
2988
/ 3967
#2988 in Computer System Cooling Parts
Price vs Category Average
-9%
Below average
Block material
nickel electroplated high purity copper + high quality acrylic
/ nickel electroplated high purity copper + high quality acrylic
Who it's for
- Enthusiasts seeking maximum performance and stable overclocking.
- Builders prioritizing a premium, visually striking custom liquid-cooled PC.
- Users desiring a silent, high-performance gaming or workstation PC.
Who should skip it
- Novice builders or those uncomfortable with intricate hardware modifications.
- Consumers concerned about maintaining their GPU's original warranty coverage.
- Budget-conscious PC builders or those seeking cost-effective cooling solutions.
Key Specs
Block material
nickel electroplated high purity copper + high quality acrylic
Backplate material
black anodized aluminum
Compatibility
Galax RTX 4090 HOF OC Lab Plus
Inlet/outlet port size
G1/4 inch thread
Lighting system
RBW 5v 3pin
Features
- Direct cooling of GPU, RAM, and VRM
- Nickel-plated copper for oxidation prevention
- High-flow design for series setups
- Configurable parallel or serial designs
- Includes backplate for enhanced cooling
- RBW lighting system
What customers say
Customers consistently praise the Bykski GPU water block for its exceptional build quality and precise fit tailored specifically for the Galax RTX 4090 HOF OC Lab Plus. Enthusiasts appreciate the robust materials and meticulous engineering, ensuring a secure and leak free installation. The sleek design and integrated RGB elements often receive commendation, enhancing the visual appeal of high performance custom liquid cooling setups. Users report significant temperature reductions, highlighting the block's effectiveness in maintaining optimal GPU performance. This product is seen as a premium solution for serious builders seeking both aesthetic excellence and superior thermal management.
Know before you buy
No, this block is specifically engineered for the Galax RTX 4090 HOF OC Lab Plus PCB layout. Due to the unique design of the HOF series, it will not fit standard or reference-design RTX 4090 cards.
This is a full-coverage block, meaning it makes direct contact with the GPU core, graphics memory (VRAM), and the voltage regulator modules (VRM). This ensures all heat-generating components are kept at optimal temperatures.
The block features an RBW lighting system that uses a standard 5v 3-pin addressable header. Please ensure your motherboard or lighting controller supports this 5v standard before connecting.
Yes, the high-flow design is specifically optimized for series setups. With both top and bottom ports available, you can easily configure your loop for either parallel or serial flow.
The included black anodized aluminum backplate is functional. It provides structural rigidity to prevent GPU sag and assists in passive heat dissipation for the components on the rear of the PCB.
The block uses industry-standard G1/4 inch threads. This allows you to use almost any standard water cooling fitting designed for custom loops.
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