Keychron K5 Pro QMK/VIA Wireless Mechanical Keyboard (RGB Backlight Hot-Swappable Version) Keychron K5 Pro is an ultra-slim hot-swappable Bluetooth custom mechanical keyboard that allows anyone to master any keys or macro commands on its 100% full-size layout through VIA, it has included LSA (low profile spherical-angled) profile keycaps for both Windows and macOS, and users can hot-swap with Gateron low-profile MX mechanical switch in a breeze. Connects the K5 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. Program K5 Pro with QMK & VIA Simply connect the K5 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 (Low-Profile Gateron Red Switch) You can easily hot-swap every low-profile Gateron mechanical switch in a few seconds to customize the typing experience without soldering. *The K5 Pro is currently compatible with Gateron low-profile mechanical switches only, as QMK does NOT support low-profile optical switches. The Pre-installed Low-profile Gateron red switch given that 1.7 ±0.4mm pre-travel and 50 ±15gf operating force, features a nice linear 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. Ultra-Slim K5 Pro The innovative low-profile Gateron switch is 31% slimmer than conventional normal profile switches makes the aluminum body K5 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 K5 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. Specification Number of Keys: 108 (100%) 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 red 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: White LED Backlight Weight: About 720g / 1.59 lbs Dimension: 435 mm x 120 mm (17.13 x 4.72")