QMK/VIA software support: QMK / VIA is open-source software for keyboards that allows anyone to program and remap each key easily and quickly. You can personalize your own keyboard layouts, shortcuts, backlight effects, and more. | Gasket mount design: The C3 Pro uses a gasket mount structure to reduce sound resonance while adding more typing flexibility. Along with the sound-absorbing foam and the case foam, it provides you with a quieter and smoother typing experience. | 1000 Hz polling rate & NKRO: Empowered by the high- performance ARM architecture MCU with 256KB Flash, it provides a 1000 Hz polling rate for a fast and responsive typing speed in your working and gaming. The NKRO feature is convenient to help you enter multiple keypresses at a time. | Easy toggle between macOS and Windows: Press the key combo FN + CAPS to instantly change the keyboard working system to Mac / Win. And it accommodates universal keycaps compatible with both systems. | Shine-through double-shot ABS keycaps: Made through the ABS double-shot process, the keycaps are durable and wear-resistant. Meanwhile, the shine-through legends lit up by the north-facing LED present a glamorous look at your fingertips. And you can also switch from more than 14 types of red backlights.