The copper based Pacific W5 CPU Water Block features anti-corrosive nickel plating, high-quality PMMA cover, and central inlet design for extreme cooling performance. The water block has a built-in temperature sensor to deliver the real-time CPU water block temperature for security. W5 is not only equipped with top-notch inner components but also has a gorgeous RGB appearance. The water block features 16.8 million colors LED supported by TT RGB Plus Software, Amazon Alexa Voice Service and Razer Synapse 3 (Razer Chroma). In addition, Pacific W5 CPU Water Block is designed with universal mounting mechanism that fits with most G1/4 fittings and offers error-free as well as no-tools installation. Pacific W5 CPU Water Block provides ultimate cooling performance while shines in 16.8 million RGB colors.