Low-profile Wireless Mechanical Keyboard - Hot-Swappable Version Keychron K1 Max is an ultra-slim wireless custom mechanical keyboard. It supports 2.4 GHz, Bluetooth, and a wired connection. It allows anyone to master any keys or macro commands on its 80% TKL layout through VIA. Besides, 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. The polling rate is 1000 Hz on 2.4GHz and wired modes right out of the box, which makes the latency hardly noticeable even in competitive games. QMK & VIA Simply connect the K1 Max to your device with a cable, drag and drop your favorite keys or macro commands to remap any key or combination you want on any system (macOS, Windows, or Linux). Ultra-Slim The innovative low-profile Gateron switch is 31% slimmer than conventional normal profile switches makes the aluminum body K1 Max one of the thinnest wireless mechanical keyboards. Hot-Swappable Low-Profile Gateron Switch You can easily hot-swap every low-profile Gateron mechanical switch in a few seconds to customize the typing experience without soldering. *The K1 Max is currently compatible with Gateron/Keychron low-profile mechanical switches only, as QMK does NOT support low-profile optical switches. Low-Profile Double-Shot PBT Keycaps with RGB Backlight Comes with more than 22 types of RGB backlight settings. You can further fine-tune the hue, saturation, brightness, effect speed with ease. The K1 Max 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. SPECIFICATION Polling Rate (2.4GHz and Wired Mode) 1000Hz Polling Rate BT Mode) 90Hz N-Key Rollover (NKRO) Yes for both wireless and wired modes Compatible System macOS / Windows / Linux MCU ARM Cortex-M4 32-bit STM32F402 (256KB Flash) Connection 2.4 GHz / Bluetooth / Type-C wired Battery 2000 mAh rechargeable li-polymer battery Operating Environment -10 to 50℃ Frame Material ABS+Aluminum frame Keycap Material Low-profile double-shot PBT Switches Hot-Swappable Low-Profile Gateron Switch Backlit 22 types of RGB backlight Dimension 346 x 118.5 mm (13.62 x 4.66") Weight 608 g / 1.34 lbs