RGB and LIGHTSYNC – G512 is full-spectrum 16.8M colors with customizable per key lighting. Create your own RGB animation effects or choose from preset lighting effects and animations. And with new LIGHTSYNC technology lighting is driven by games to deliver the most immersive RGB experience ever. CHOICE OF MECHANICAL SWITCH – Choose from three distinct mechanical switches: Romer-G Tactile Romer-G Linear and GX Blue. Romer-G Tactile is the original profile providing a discernible actuation point you can feel. Romer-G Linear features a smooth and near-silent keystroke. Both Romer-G profiles feature 1.5mm actuation distance making them 25% faster than standard switches. GX Blue is an iconic design providing both tactile and clicky feedback with snappy actuation you can feel and hear. All switches are tested and rated for a 70 million click lifespan to be reliable and durable. AIRCRAFT-GRADE ALUMINUM ALLOY – The brushed aluminum-magnesium alloy top case serves as the keyboard?s backbone. The result is a minimal design balanced with a full set of features. With a focus on high-end finish and performance G513 is crafted from the highest-grade materials. USB PASSTHROUGH – Convenience and speed are directly within reach. The additional dedicated USB cable connects the USB passthrough port to it?s own input for 100% power throughput and data speed. Plug in a device to charge or plug in a mouse to charge your adversaries without missing a beat. Full Function Keys – Media and lighting controls are right at your fingertips. Use the FN key to control volume play and pause mute toggle game mode change lighting effects etc. Use the FN toggle feature in Logitech Gaming Software (LGS) and configure your function keys to perform these alt commands by default.