LIGHTSYNC RGB 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 Romer-G profile and provide a discernible actuation point you can feel. Romer-G Linear features a smooth keystroke. GX Blue is an iconic design providing both tactile and clicky. AIRCRAFT-GRADE ALUMINUM ALLOY G512 is crafted from incredibly strong and durable 5052 aluminum-magnesium alloy which allows for both a minimal design and a beautiful aesthetic. The rigidity of 5052 alloy also provides a sturdy, non slip chassis that houses a full suite of features for an unbeatable gaming experience. USB PASSTHROUGH Convenience and speed are directly within reach. The additional, dedicated USB cable connects the USB passthrough port to its own input for full 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. DEDICATED GAMING FEATURES Don’t lose a game because you fat-fingered the Windows key. Toggle game mode with FN+F8. Deactivate additional keys using Logitech Gaming Software. Store per-key RGB lighting profiles in the onboard memory for use on any system.3Advanced settings require Logitech Gaming Software available for download at logitech.com/downloads G512 ROMER-G TACTILE/LINEAR Length: 132 mm (5.2 in) Width: 445 mm (17.5 in) Height: 34 mm (1.4 in) Weight (w/o cable): 1150 g (40.6 oz) Cable Length: 6 ft G512 GX BLUE Length: 132 mm (5.2 in) Width: 445 mm (17.5 in) Height: 35.5 mm (1.4 in) Weight (w/o cable): 1130 g (39.9 oz) Cable Length: 6 ft ROMER-G TACTILE/LINEAR MECHANICAL SWITCHES Durability: 70 million keypresses Actuation distance: 1.5 mm Actuation force: 45 g Total travel distance: 3.2 mm GX BLUE MECHANICAL SWITCHES Durability: 70 million keypresses Actuation distance: 1.9 mm Actuation force: 50 g Total travel distance: 4.0 mm Connection Type: USB 2.0 USB Protocol: USB 2.0 USB Ports (Built-in): Yes, 2.0 Indicator LIghts (LED): 2 Backlighting: Yes, RGB per key lighting SPECIAL KEYS Lighting Controls: FN+F5/F6/F7 Game Mode: FN+F8 Media Controls: FN+F9/F10/F11/F12 Volume Contros: FN+ PRTSC/SCRLK/PAUSE Programmable FN keys via Logitech Gaming Software REQUIREMENTS Windows® 10, Window 8.1, Windows 8, or Windows 7 USB port (for keyboard) Second USB port (for USB passthrough port) (Optional) Internet access for Logitech Gaming Software Requires LGS 8.98 or higher for advanced settings. PART NUMBER Carbon - English layout - Tactile : 920-008763 Carbon - English layout - Linear : 920-008762 Carbon - English layout - GX Blue Switch : 920-008949 WARRANTY INFORMATION 2 - Year Warranty