COMPATIBILITY: This product is designed for the ZOTAC GAMING GeForce RTX 4090 Apocalypse, ZOTAC GAMING GeForce RTX 4090 AMP Extreme AIRO, ZOTAC GAMING GeForce RTX 4090 Trinity OC, ZOTAC GAMING GeForce RTX 4090 Trinity, ZOTAC GeForce RTX 4090 D Apocalypse, ZOTAC GeForce RTX 4090 D TRINITY, MANLI GeForce RTX 4090, NVIDIA RTX 4090 Gallardo graphics cards, guaranteeing an ideal fit and enhanced performance. EASY INSTALLATION: The product comes with all the required installation hardware and thermal paste, making the setup process straightforward so you can begin without any difficulties. See Image Gallery for Install Illustration DIRECT COOLING FOR GPU, RAM, AND VRM: Optimizes temperatures for peak performance and longevity. The high-flow design enhances cooling efficiency by allowing multiple blocks to run in series, while versatile configuration options enable parallel or serial setups for your custom water-cooling system HIGH-QUALITY MATERIALS: The Block is made from nickel-electropl