Bykski
Bykski N-AS4070SSTRIX-X Full-Cover GPU Water Block with Backplate for ASUS ROG Strix RTX 4070 and 4070 Super O12G Gaming
Bykski N-AS4070SSTRIX-X Full-Cover GPU Water Block with Backplate for ASUS ROG Strix RTX 4070 and 4070 Super O12G Gaming
TL;DR: The N-AS4070SSTRIX-X is built around the shared PCB of the ASUS ROG-STRIX GeForce RTX 4070 O12G Gaming and ROG-STRIX GeForce RTX 4070 SUPER O12G Gaming cards, and is explicitly marked for selected models only - verify the PCB photo on the manufacturer page before ordering. A nickel-electroplated...
Common Applications
The N-AS4070SSTRIX-X is built around the shared PCB of the ASUS ROG-STRIX GeForce RTX 4070 O12G Gaming and ROG-STRIX GeForce RTX 4070 SUPER O12G Gaming cards, and is explicitly marked for selected models only - verify the PCB photo on the manufacturer page before ordering. A nickel-electroplated high-purity copper cold plate sits on the AD104 die, with microfins drawing heat from the GDDR6X memory and VRMs through pre-cut thermal pads. A clear acrylic (PMMA) top exposes the channel and houses a pre-installed 5V A-RGB strip. Mirrored top and bottom G1/4 ports enable series or parallel multi-GPU loops.
Frequently Asked Questions
Q: Does this block fit every ASUS RTX 4070 or 4070 Super?
A: No. It is mapped to the ROG-STRIX GeForce RTX 4070 O12G Gaming and ROG-STRIX GeForce RTX 4070 SUPER O12G Gaming PCBs only, and the manufacturer explicitly notes that some Strix revisions may differ - confirm the PCB photo first.
Q: What is included in the box?
A: GPU water block, matching backplate, two stop fittings, mounting hardware, thermal grease, and a pre-installed 5V A-RGB strip.
Q: Is the RGB header 5V or 12V?
A: 5V addressable A-RGB (RBW). Plugging it into a 12V RGB header will damage the LEDs.
Q: What is the cold-plate material?
A: Nickel-electroplated high-purity copper. The plating protects against galvanic corrosion when mixing with brass or copper fittings.
Q: Can the block be used in a multi-GPU loop?
A: Yes. Mirrored G1/4 ports on top and bottom of the block allow series or parallel plumbing of two cards on the same loop.







