Model: H6603 (for 27-34 inch PCs) & H6604 (for 55-65 75-85 inch TVs) Immerse in Next-Gen Entertainment: Elevate your gaming setup with Govee AI Gaming & TV Sync Box Kit 2, now equipped with HDMI 2.1 for seamless 8K visuals at 60Hz and 4K at 144Hz. Experience vibrant 4-in-1 RGBWIC lighting, AI-driven effects, and reduced lag with VRR and ALLM support. Upgrade to a new level of gaming and entertainment immersion today! Please Note: You may receive Packaging A or B for this 55-65 inch TV variant. Rest assured, the same high-quality product is inside. Upgraded HDMI 2.1: Adopting the latest HDMI 2.1 interface for data transmission, it enables screen and lighting synchronization, supporting up to 8K at 60Hz and 4K at 144Hz and providing a smooth, high-definition gaming experience. Supports VRR and ALLM: Reduces lag and screen tearing (i.e., FPS games and some RPGs) with a frame rate exceeding 120Hz. Industry-First AI-Chips: Deep AI learning from video content to trigger specific and immersive lighting effects. 4-in-1 RGBWIC Lighting: Four-color mixing ensures pure white light and accurate color blending for vibrant effects, making it better suited for game visuals. Upgraded Strip Light: With 75 LEDs and a brightness of 450 lumens every meter, the high-density light strip provides a brighter and more immersive experience. Note: Maximum performance (8K60Hz, 4K@144Hz) may vary depending on different screen types. The product may not support some screens using DSC technology. Please refer to customer service to check the compatibility of your screen. Automatic signal switching is not supported when multiple devices are connected.