4K X is game capture at its best. Equipped with HDMI 2.1, our most powerful USB card lets you capture the latest titles up to 4K with HDR at 144 frames per second, or even 1080p240. Say goodbye to screen tearing with VRR passthrough. Enjoy ultra-low latency technology that keeps your broadcast and gameplay synced. 4K X works with almost any HDMI-compatible device, including PS5, Xbox Series X, Switch, Steam Deck, PC, Mac, even your iPhone 15. And it works seamlessly with leading broadcast apps like OBS, so you can stream like a pro on Twitch, YouTube, or Discord.