Custom-designed for the ASUS ROG STRIX / TUF gaming RTX 4090 graphic cards Unlock the full potential of the RTX 4090 with high performance water cooling Milled from a 10mm pure copper block to directly cool all memory and power delivery components Fine 0.6mm fin array combined with a clear jetplate directly over the GPU die ensures optimal heat transfer Viton Rubber Washer for retaining seal force and prevent leaks Low-profile fitting location for better chassis clearance and GPU Support Bracket to prevent sag Integrated Digital-RGB Lighting with standard JST connectors to allow for expansion and synchronization with all Phanteks D-RGB products and compatible motherboards with Addressable-RGB lighting