The Corsair Hydro X Series XG5 RGB 5090 Astral GPU water block is a full-cover water block made of copper for ASUS ROG Astral GeForce RTX 5090 graphics cards. It features a CNC-machined, nickel-plated copper plate with 67 cooling fins for optimal heat transfer. A full-coverage aluminum backplate protects the graphics card's PCB. A fully transparent flow channel with 16 RGB LEDs showcases the graphics card – use the included ARGB adapter for motherboard control or combine it with an iCUE LINK system hub or any iCUE controller and the iCUE software for customizable lighting. Pre-applied thermal paste, G1/4-inch fittings, and a clear instruction manual ensure easy installation and allow the GPU to reach its full performance potential.