Phanteks’ Glacier G4090 GIGABYTE Water Block provides a high-performance water-cooling solution custom-designed for the latest GIGABYTE AORUS MASTER / GAMING RTX 4090 cards. Designed using premium materials, the Glacier G4090 GIGABYTE Water Block features an aluminum cover, nickel-plated copper base, clear transparent acrylic top, and VITON sealing from the Automotive and Aerospace Industries to ensure the best reliability and longevity.Glacier G4090 GIGABYTE Water Block comes with integrated D-RGB lighting that beautifully complements the water block and can synchronize with Phanteks' D-RGB accessories and compatible third-party products. Lastly, the included CNC machined black anodized or chrome plating aluminum backplate covers the whole length of the graphic card with a minimalistic and elegant design that features thermal pads to help improve cooling of the RAM and VRM on the back of the PCB.