Bykski
Bykski N-AS4090STRIX-X-V3 GPU Water Block for ASUS ROG Strix / TUF Gaming RTX 4090, with Backplate, Continuous Usage
Bykski N-AS4090STRIX-X-V3 GPU Water Block for ASUS ROG Strix / TUF Gaming RTX 4090, with Backplate, Continuous Usage
TL;DR: The N-AS4090STRIX-X-V3 is the V3 Continuous Usage revision of the full-cover GPU water block for the long-PCB ASUS ROG Strix and TUF Gaming RTX 4090 family. It fits the ROG Strix GeForce RTX 4090 (including OC Edition, 24G Gaming and BTF variants) and the TUF Gaming GeForce RTX 4090, replacing the...
Common Applications
The N-AS4090STRIX-X-V3 is the V3 Continuous Usage revision of the full-cover GPU water block for the long-PCB ASUS ROG Strix and TUF Gaming RTX 4090 family. It fits the ROG Strix GeForce RTX 4090 (including OC Edition, 24G Gaming and BTF variants) and the TUF Gaming GeForce RTX 4090, replacing the stock triple-slot air cooler with a slim two-slot block. The cold plate is nickel-electroplated high-purity copper, the top is stainless stee and the backplate is black anodized aluminum that never contacts coolant. G1/4 inch inlet/outlet ports support series or parallel routing across multi-GPU loops, and the high-flow channel design covers GPU core, GDDR6X memory and VRM stages in one piece.
Frequently Asked Questions
Q: Which RTX 4090 cards does the V3 fit?
A: ASUS ROG Strix GeForce RTX 4090 (including OC Edition, 24G Gaming and BTF variants) and the TUF Gaming GeForce RTX 4090. It does not fit the short-PCB ROG Strix LC or the TUF Gaming RTX 4090 OG, which need the N-AS4090TUFOG-X family.
Q: How is V3 different from V2?
A: V3 is part of Bykski's Continuous Usage line with refinements to materials and seals for sustained 24/7 operation while keeping the same Strix/TUF PCB compatibility.
Q: What materials are used?
A: Cold plate is nickel-electroplated high-purity copper, top is stainless steel and the backplate is black anodized aluminum that does not contact coolant.
Q: Does it support multi-GPU loops?
A: Yes. G1/4 inch ports and a high-flow channel design allow several blocks to be plumbed in series or parallel within one loop.
Q: What is in the box?
A: Full-coverage GPU water block, anodized aluminum backplate, mounting hardware, plug fittings and thermal pads.







