Bykski N-MS4090-X Full-Cover GPU Water Block + Backplate for MSI GeForce RTX 4090 Turbo, POM + Metal, G1/4

Bykski N-MS4090-X Full-Cover GPU Water Block + Backplate for MSI GeForce RTX 4090 Turbo, POM + Metal, G1/4

TL;DR: The N-MS4090-X is matched to the MSI GeForce RTX 4090 Turbo blower-style card and is not cross-compatible with MSI Gaming X Trio, Suprim, or Ventus PCBs. The cold plate is nickel-electroplated high-purity copper, the top section uses POM with a stainless-steel face for an ultra-thin profile, and...

Common Applications

The N-MS4090-X is matched to the MSI GeForce RTX 4090 Turbo blower-style card and is not cross-compatible with MSI Gaming X Trio, Suprim, or Ventus PCBs. The cold plate is nickel-electroplated high-purity copper, the top section uses POM with a stainless-steel face for an ultra-thin profile, and the black anodized aluminum backplate is isolated from the coolant path. Both G1/4 ports support high-flow serial or parallel routing so multiple cards can share one loop. Installation requires the user to apply thermal paste to the die and thermal pads on the raised contact points.

Frequently Asked Questions

Q: Which MSI RTX 4090 cards is the N-MS4090-X intended for?

A: The MSI GeForce RTX 4090 Turbo (blower) only. Suprim, Suprim X, Suprim Liquid X, Gaming X Trio, Ventus 3X, and Gaming X Slim use different blocks such as N-MS4090TRIO-X or N-MS4090VES-X.

Q: What materials does the block use?

A: Nickel-electroplated high-purity copper, POM, stainless steel top panel, and a black anodized aluminum backplate that does not contact coolant.

Q: Is a backplate included?

A: Yes. A black anodized aluminum backplate is part of the kit.

Q: What thread size do the ports use?

A: G1/4 inch. The high-flow design supports both serial and parallel routing in multi-GPU loops.

Q: What comes in the box?

A: One full-cover GPU water block, one backplate, mounting hardware, and thermal grease. No printed English instructions are included.