Keyboard Keychron K3 Max Low-Profile 75% QMK/VIA Wireless Swappable RGB Gateron Red – White

Keychron K3 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 75% compact layout through Keychron Launcher web app. 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 (for RGB Backlight Hot-Swappable Version only). SPECIFICATIONNumber of Keys: 84 (75%)Switches: Gateron low-profile mechanical / Keychron Low Profile MechanicalSwitch Face: North-facingNumber of Multimedia Keys: 12Frame Material: ABS Aluminum frameKeycap Material: Low-profile double-shot PBTLayout: ANSIPolling Rate (2.4Ghz and Wired Mode): 1000HzPolling Rate (BT Mode): 90HzN-Key Rollover (NKRO): Yes for both wireless and wired modes *The K3 Max is currently compatible with Gateron/Keychron low-profile mechanical switches only, as QMK does NOT support low-profile optical switches. CONNECTIVITY AND POWERBacklit: 22 types of RGB backlight options plus endless possibilitiesBattery: 1550 mAh rechargeable li-polymer batteryWireless Working Time (Backlit off): Around 73 hours (Lab test result may vary by actual use)Wireless Working Time (RGB): Around 42 hours (Lowest brightness)Connection: 2.4 GHz / Bluetooth / Type-C wiredBluetooth version: 5.1Bluetooth Device Name: Keychron K3 MaxCompatible System: macOS / Windows / Linux PHYSICAL UNITDimension: 306 x 116 mm (12.04 x 4.56″)Weight: 525 g / 1.16 lbsHeight without keycap (front): 11 mm (0.43″)Height without keycap (rear): 15 mm (0.59″)Height incl. keycap (front): 17 mm (0.66″)Height incl. keycap (rear): 22 mm (0.86″)Typing Angle: 2.5º, 4.2º and 6.5ºMCU: ARM Cortex-M4 32-bit STM32F402 (256KB Flash)Operating Environment: -10 to 50℃