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SKU: K4P-H1SYN Categories: , ,

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The Keychron K4 Pro is the perfect choice for modern multitaskers. Seamlessly switch between your laptop, phone, and tablet with the K4 Pro’s stable Broadcom Bluetooth 5.1, and enjoy reliable wireless connections with up to three devices. And if you need to use a wired USB type-C connection, this custom mechanical keyboard has you covered. With full compatibility for both Mac and Windows, the K4 Pro makes it easy to switch between devices quickly and easily. With its 96% layout, QMK/VIA technology, and wireless and wired options, the K4 Pro offers an efficient and reliable solution for those who need to multitask.

The new ARM Cortex-M4 STM32L432 MCU is a powerful addition to any developer’s toolbox. With its ultra-low-power usage and 32-bit architecture, the STM32L432 is fast and flexible. Developers will have more options than ever before with its 128K Flash memory. This MCU is a must-have for any serious designer looking to push the boundaries of their project.

The Keychron K4 Pro is the perfect choice for Mac users that need the same multimedia and function key functions that Apple keyboards offer but with the added advantage of tactile feedback. And, it is also compatible with Windows, so you can have the best of both worlds. With the added feature of being able to configure different keymaps for macOS, Windows, and Linux devices, it is extremely efficient and versatile. The keyboard also comes with keycaps for both macOS and Windows, so you can switch between operating systems with ease. With the VIA software being compatible with all operating systems, this keyboard is the only one you will ever need.


  • Wireless or Wired
  • QMK/VIA Support
  • Hot Swappable Keys
  • Sound Absorbing Foam
  • PCB Stabilizers
  • Double-Shot PBT Keycaps


  • Number of Keys: 100 (96%)
  • Switches: Keychron K Pro Mechanical RED
  • Switch Face: South-facing
  • Stabilizers: PCB-mounted screw-in stabilizers
  • Number of Multimedia Keys: 12
  • Frame Material: ABS
  • Plate Material: Steel
  • Keycap Material: Double-shot PBT
  • Keycap Profile: OSA
  • Layout: ANSI
  • Polling Rate (Wired Mode): 1000Hz
  • Polling Rate (Wireless Mode): 90Hz
  • Backlit: 22 types of RGB backlight options plus endless possibilities
  • Battery: 4000 mAh rechargeable li-polymer battery
  • BT Working Time (Backlit off): Up to 300 hours (Lab test result may vary by actual use)
  • BT Working Time (RGB): Up to 100 hours (Lowest brightness)
  • Connection: Bluetooth and Type-C cable
  • Bluetooth version: 5.1
  • Bluetooth Device Name: Keychron K4 Pro
  • Compatible System: macOS/Windows/Linux
  • Typing Angle: 3º, 7º and 10º
  • MCU: Ultra-low-power ARM Cortex-M4 32-bit STM32L432 (128KB Flash)
  • Operating Environment: -10 to 50℃


  • Keychron K4 Pro RGB Wireless Mechanical Red Keyboard Red Switches – Black x1


Additional information

Weight 1.725 kg

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