Bykski
Bykski N-AS4070ATSV2-X Full-Cover Water Block + Backplate for ASUS ATS RTX 4070 O12G V2 Gaming
Bykski N-AS4070ATSV2-X Full-Cover Water Block + Backplate for ASUS ATS RTX 4070 O12G V2 Gaming
TL;DR: The N-AS4070ATSV2-X is a custom-loop full-cover block built around the ASUS ATS GeForce RTX 4070 O12G V2 Gaming PCB (AD104, 12GB GDDR6X, 200W TDP). Nickel-electroplated high-purity copper contacts the GPU die through Bykski thermal paste, while pre-cut thermal pads bridge the GDDR6X modules and the...
Common Applications
The N-AS4070ATSV2-X is a custom-loop full-cover block built around the ASUS ATS GeForce RTX 4070 O12G V2 Gaming PCB (AD104, 12GB GDDR6X, 200W TDP). Nickel-electroplated high-purity copper contacts the GPU die through Bykski thermal paste, while pre-cut thermal pads bridge the GDDR6X modules and the VRM stage to the same cold plate. A clear PMMA (acrylic) top exposes the internal flow channels and houses a 5V addressable RGB strip. A black anodized aluminum backplate ships in the box but is isolated from the coolant path. G1/4 threaded ports support series or parallel multi-block loops.
Frequently Asked Questions
Q: Which card does this block fit?
A: Only the ASUS ATS GeForce RTX 4070 O12G V2 Gaming PCB. It does not fit ASUS Dual, TUF or ROG Strix RTX 4070 cards, which each use their own dedicated Bykski blocks.
Q: Are a backplate and thermal pads included?
A: Yes. The kit includes the block, the black anodized aluminum backplate, screws, standoffs, pre-cut thermal pads and Bykski thermal paste.
Q: What RGB voltage does the block use?
A: 5V addressable RGB (RBW). It is NOT compatible with 12V RGB headers and Bykski warns that mixing the two voltages will damage the LEDs.
Q: What materials make up the block?
A: Nickel-electroplated high-purity copper cold plate, clear PMMA acrylic top and black anodized aluminum backplate. Only the copper cold plate contacts coolant.
Q: What thread size are the ports?
A: Standard G1/4 inch threaded ports. The block can be daisy-chained in series or run in parallel with other GPU and CPU blocks.







