Keychron Q2 Pro QMK/VIA Wireless Custom Mechanical Keyboard - Knob Version Keychron Q2 Pro Knob Version, a 65% Layout full metal QMK/VIA wireless custom mechanical keyboard, crafted with 6063 aluminum, including double-gasket design, excellent compatibility with macOS, Windows, Linux, hot-swappable functionality, PCB screw-in stabilizer, and south-facing RGB, etc., it will deliver you an unprecedented typing experience! You can connect the Q2 Pro with up to 3 devices wirelessly via its stable Broadcom Bluetooth 5.1 for seamless multitasking across your laptop, phone, and tablet. Switch among them swiftly, and it’s fully compatible with both Mac and Windows. A reliable USB Type-C wired connection is also available when you need it. You can hot-swap every switch on the Q2 Pro with almost all of the 3pin and 5pin MX style mechanical switches on the market (including Cherry, Gateron, Kailh, Panda, etc.) without soldering required. You can customize your own typing experience in seconds. Program The Q2 Pro with QMK & VIA. A powerful ultra-low-power ARM Cortex-M4 32-bit STM32L432 chip (MCU) equipped with 128K Flash will provide more flexibility for developers. The polling rate is 1000 Hz right out of the box on type-c wired mode (90 Hz on wireless mode), which makes the latency hardly noticeable even in competitive games. Easily customize the knob to your desired key or macro commands like zooming in/out, adjusting screen brightness, brush size, volume, selecting video clips or photos, or backlight hue. Easy to Disassemble and Assemble Designed every component to be able to assemble easily so you can customize and adjust each component with ease to create your ultimate typing experience. South-Facing RGB The south-facing RGB (ie. LED on the south side of the switch) is designed to better illuminate backlit from typist angle when the oil-resistant non-backlight shine through PBT keycaps installed. Comes with 22 types of RGB backlight settings. You can further fine-tune the RGB hue, saturation, brightness, effect speed, and different modes, or even remap these keys with QMK/VIA. Specs Body Material: Full CNC machined aluminum Switch: Keychron K Pro (Fully Assembled version) Stabilizer: Screw-in PCB stabilizer Backlight: South-facing RGB LED Hot-swappable: Yes. Compatible with most of the 3 pin & 5 pin MX mechanical switches such as Gateron, Cherry MX and Kailh, etc. MCU: Ultra-low-power ARM Cortex-M4 32-bit STM32L432 (128KB Flash) Polling Rate: 1000 Hz (wired) / 90 Hz (wireless) N-Key Rollover (NKRO): Yes for both wireless and wired modes Operating Environment: -10 to 50℃ Battery: 4000 mAh Rechargeable li-polymer battery BT Working Time (Backlit off): Up to 300 hours (Lab test result may vary by actual use) BT Working Time (RGB): Up to 100 hours (Lowest brightness) Bluetooth Version: 5.1 Compatible System: macOS/Windows/Linux Connectivity: Bluetooth / Type-C wired