Bykski N-AS4090TUFOG-X-V2 GPU Water Block for ASUS TUF Gaming RTX 4090 OG / ROG Strix LC RTX 4090 24G/TUF GeForce RTX 4070 Ti SUPER O16G OG GAMING, Nickel-Plated Copper + POM,

Bykski N-AS4090TUFOG-X-V2 GPU Water Block for ASUS TUF Gaming RTX 4090 OG / ROG Strix LC RTX 4090 24G/TUF GeForce RTX 4070 Ti SUPER O16G OG GAMING, Nickel-Plated Copper + POM

TL;DR: The N-AS4090TUFOG-X-V2 is the Continuous Usage revision of the dedicated water block for the short-PCB ASUS TUF Gaming GeForce RTX 4090 OG (TUF-RTX4090-24G-OG / -O24G-OG variants) and the ROG Strix LC GeForce RTX 4090 24G - cards whose compact reference-style PCB differs from the long-PCB Strix and...

Common Applications

The N-AS4090TUFOG-X-V2 is the Continuous Usage revision of the dedicated water block for the short-PCB ASUS TUF Gaming GeForce RTX 4090 OG (TUF-RTX4090-24G-OG / -O24G-OG variants) and the ROG Strix LC GeForce RTX 4090 24G - cards whose compact reference-style PCB differs from the long-PCB Strix and TUF, requiring this specific block. The cold plate is nickel-electroplated high-purity copper, the top is stainless steel with POM insulation, and the backplate is black anodized aluminum that does not contact coolant. G1/4 inch inlet/outlet ports support series or parallel routing for multi-GPU loops, and the high-flow channel design directly cools the GPU core, GDDR6X memory and VRM stages.

Frequently Asked Questions

Q: Which ASUS 4090 boards does this fit?

A: ASUS TUF Gaming GeForce RTX 4090 OG (including the O24G-OG OC Edition) and ROG Strix LC GeForce RTX 4090 24G / 24G OC. The long-PCB ROG Strix and standard TUF Gaming RTX 4090 require the N-AS4090STRIX-X series instead.

Q: What does the V2 / Continuous Usage tag mean?

A: V2 introduces material and seal updates so the block is rated for continuous 24/7 operation, including server and AI workloads.

Q: What materials are used?

A: Cold plate is nickel-electroplated high-purity copper, top is stainless steel with POM insulation, and the backplate is black anodized aluminum that does not contact coolant.

Q: Is the lighting 5V A-RGB or 12V RGB?

A: Lighting on the block is 5V 3-pin addressable RGB (RBW). Connecting it to a 12V 4-pin RGB header will damage the LEDs. A sync cable is included to drive it from a motherboard 5V A-RGB header.

Q: What is in the box?

A: Full-coverage GPU water block, backplate,  a lighting sync cable