Keychron K1 Pro RGB QMK/VIA Wireless Mechanical Keyboard (Hot-Swappable Version) Keychron K1 Pro is a 80% layout low profile wireless mechanical keyboard with QMK/VIA enabled for endless possibilities. Connects the K1 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. You can also enjoy a USB Type-C wired connection with 1000 Hz polling rate which is engineered for the competitive game. The Pre-installed Low-profile Gateron 2.0 brown switch given that 1.7 ±0.4mm pre-travel (3.0 +0.2mm Travel distance) and 55 ±15gf operating force, features a nice tactile feeling. Redesigned the stabilizers to make it stay on the level the same way as the switch while making sure it still delivers reliability and less wobble on the big keys like the space bar, left Shift, backspace, and Enter key. Program K1 Pro with QMK & VIA Simply connect the K1 Pro to your device with a cable, drag and drop your favorite keys or macro commands to remap any key you want on any system (macOS, Windows, or Linux). An ultra-low-power ARM Cortex-M4 32-bit STM32L432 MCU which is powerful, and equipped with 128K Flash will provide more flexibility for developers. Hot-swappable You can easily hot-swap every low-profile Gateron mechanical switch in a few seconds to customize the typing experience without soldering. *The K1 Pro is currently compatible with Gateron low-profile mechanical switches only, as QMK does NOT support low-profile optical switches. Ultra-Slim K1 Pro The innovative low-profile Gateron switch is 31% slimmer than conventional normal profile switches makes the aluminum body K1 Pro one of the thinnest wireless mechanical keyboards in the world. While still delivering a distinguished tactile response. Three levels of adjustable typing angle aim to provide long-lasting ergonomic wrist support. RGB Backlights Comes with more than 22 types of RGB backlight settings, you can further fine-tune the RGB hue, saturation, brightness, effect speed with ease. The K1 Pro comes with our unique double-shot PBT keycaps that made of durable non-backlight shine through PBT material with excellent oil resistance for long-term use. Please Note: All tools are placed on bottom of the box. K1 Pro Specification Number of Keys: 87 (80%) Frame Material: ABS+Aluminum frame Keycaps: Low-profile double-shot PBT N-Key Rollover (NKRO): Yes for both wireless and wired modes Polling Rate (Wired Mode): 1000 Hz Polling Rate (Wireless Mode): 90 Hz Connectivity: Bluetooth 5.1 and Type-C cable Switches: Gateron low-profile tactile Brown mechanical switch pre-installed Compatible System: macOS/Windows/Linux Battery: 2000 mAh rechargeable li-polymer battery MCU: Ultra-low-power ARM Cortex-M4 32-bit STM32L432 (128KB Flash) Backlight: RGB Backlight Weight: About 580 g / 1.28 lbs Dimension: 346 x 118.5 mm (13.62 x 4.66")