The Romer-G mechanical switch is designed to provide professional-level durability, responsiveness, and performance. Romer-G is also specifically made to provide clear, accurate lighting through the keycap. Particularly during late-night gaming sessions, keys are always visible and never distracting. For 100% power and data speed, a separate USB cable is used to connect the USB pass-through port to its own input. Charge your device by plugging it in, or charge your enemies by plugging in a mouse. KEYS TO FULL FUNCTION: Toggle lighting, mute, skip tracks, play and pause, adjust volume, enter game mode, and more with the function (FN) keys. The keyboard's backbone is the brushed aluminum-magnesium alloy top case. As a result, a complete feature set is balanced with a minimalist design.