MERCURY, STELLAR EDITION FANTECH ATOM PRO63 MK912 MECHANICAL GAMING KEYBOARD Bluetooth, 2.4Ghz Bluetooth, and Wired Mode are the three connection modes. Stable: No lag, no delay, and no loss of connection 63 keys in total Anti-ghosting: Every single key LED: 22-Mode Spectrum RGB Illumination Type-C Cable Detachable Change Color: Blue Hot Swappable Switches with 5 Pins Adaptable Foot MERCURY, STELLAR EDITION FANTECH ATOM PRO63 MK912 MECHANICAL GAMING KEYBOARD