Keychron K9 Pro QMK/VIA Hot-swappable Low Profile Gateron Mechanical – Red Switch

Keychron K9 Pro QMK/VIA Hot-swappable Low Profile Gateron Mechanical

SPECIFICATION

Number of Keys: 61 (60%)
Switches: Gateron low-profile mechanical
Switch Face: North-facing
Number of Multimedia Keys: 12
Frame Material: ABS+Aluminum frame
Keycap Material: Low-profile double-shot PBT
Layout: ANSI
Polling Rate (Wired Mode): 1000Hz
Polling Rate (Wireless Mode): 90Hz
N-Key Rollover (NKRO): Yes for both wireless and wired modes

*The K9 Pro is currently compatible with Gateron low-profile mechanical switches only, as QMK does NOT support low-profile optical switches.

CONNECTIVITY AND POWER

Backlit: 22 types of RGB backlight options plus endless possibilities
Battery: 1550 mAh rechargeable li-polymer battery
BT Working Time (Backlit off): Up to 100 hours (Lab test result may vary by actual use)
BT Working Time (RGB): Up to 33 hours (Lowest brightness)
Connection: Bluetooth and Type-C cable
Bluetooth version: 5.1
Bluetooth Device Name: Keychron K9 Pro
Compatible System: macOS/Windows/Linux

PHYSICAL UNIT

Dimension: 287 x 97.5 mm (11.29 x 3.83")
Weight: 410 g / 0.90 lbs
Height without keycap (front): 7.6 mm (0.29")
Height without keycap (rear): 13.3 mm (0.52")
Height incl. keycap (front): 19.8 mm (0.77")
Height incl. keycap (rear): 23.5 mm (0.92")
Typing Angle: 3.4?, 5? and 8?
MCU: Ultra-low-power ARM Cortex-M4 32-bit STM32L432 (128KB Flash)
Operating Environment: -10 to 50?