The EK Water Blocks' EK-Quantum Vector2 FE RTX 4090 D-RGB series of water blocks is compatible with GeForce RTX 4090 Founders Edition.

It is a full cover type that can cool the GPU core, memory, and power supply circuit all at once, and the base plate has an 11 mm thick copper cold plate. Furthermore, despite the thickness of one slot, it displays great cooling performance by using the "Open Split-Flow cooling engine design," which can sustain the flow rate even with a low-output pump for the flow channel. The product line consists of two models: "EK-Quantum Vector2 FE RTX 4090 D-RGB - Nickel + Plexi," which has an acrylic top cover, and "EK-Quantum Vector2 FE RTX 4090 D-RGB - Nickel + Acetal," which has an acetal top cover.

Both come with a specialised backplate and a 1-slot thick bracket, as well as addressable RGB LED illumination.

EK Water Blocks water block makes your GeForce RTX 4090 a single slot design