Finding the best USB-C adapter that can deliver dual 4K 60Hz HDMI outputs for a Dell XPS 13 isn’t as simple as choosing whichever dongle looks nice on Amazon. Dual 4K at 60Hz demands high bandwidth, proper DisplayPort Alt Mode or Thunderbolt support, and reliable hardware that isn’t throttled by poor internal chipsets. If you pick the wrong adapter, you’ll end up with flickering screens, limited refresh rates, forced 30Hz output, or worse—no dual display capability at all.