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ProtoArc MECH K300 User Manual

Tri-mode mechanical keyboard wired + 2.4g wireless + double bluetooth

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MECH K300
Tri-Mode Mechanical Keyboard
Wired + 2.4G Wireless + Double Bluetooth

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Ken Victorick
July 28, 2025

will not connect to bluetooth

Summary of Contents for ProtoArc MECH K300

  • Page 1 MECH K300 Tri-Mode Mechanical Keyboard Wired + 2.4G Wireless + Double Bluetooth...
  • Page 2: Product Features

    Product Features FN+F1 Wired Mode FN+F2 2.4G Wireless Mode FN+F3 Bluetooth 1 FN+F4 Bluetooth 2 FN+O WIN System FN+P MAC System Charging Indicator Caps Lock Indicator Number Lock Indicator...
  • Page 3: Bluetooth Connection

    Bluetooth Connection 1. Turn on the power switch to ON. 2. Bluetooth Connected: Short press FN + F3 or FN + F4 first to enter Bluetooth channel (F3 would slow flash to indicate that you are in Bluetooth channel), and then long press FN + F3 or FN + F4 for 3-5 seconds to enter bluetooth pair code mode, and at this time F3 or F4 would flash fast.
  • Page 4 Windows 10 System Click "Bluetooth Device". Click "Add or Remove Bluetooth Devices". Your computer will automatically search for "MECH K300" and then click "Pair". MECH K300 “MECH K300” is connected and can be used normally. MECH K300...
  • Page 5 Please complete the Bluetooth mode installation step ①② before pairing. Click "System Preferences" on Mac. Click "Bluetooth" in "System Preferences". MECH K300 Your computer will automatically find "MECH K300", the click "Pair", and you can use it after installation. MECH K300...
  • Page 6 Multi-functional Combination Keys WIN System MAC System FN+F5 Screen brightness down Screen brightness down FN+F6 Screen brightness up Screen brightness up FN+F7 Tiled activity window Tiled activity window FN+F8 Desktop display Desktop display FN+F9 Search Search FN+F10 Select All Select All FN+F11 Copy Copy...
  • Page 7 We provide a direct installation link online. Please enter our website (https://www.protoarc.com) to find the data package of this model (protoarc MECH K300), and then click to download (When downloading and opening, please make sure the keyboard is connected to the computer properly) After downloading the driver, you can use the decompression tool to extract it.
  • Page 8 Lighting-Effect Adjustment 14 Adjustable lights / Lights' timing / Speeds / Brightness Macro Definition Settings Click on a blank macro command and enter the name you want, then click on Confirm, and then click on Start Recording, you can enter the function you want to define, click on Record Complete after you finish.
  • Page 9: Product Specifications

    Product Specifications Support System WIN7 / WIN8 / WIN10, MAC OS X 10.12 or above, Android 4.3 or above Battery Capacity 1900mA Battery Life 1000 times charging cycles Effective Range 6-10 meters...
  • Page 10 Notice When the keyboard is in low power, the indicator red light will slow flash (0.5NHZ / 1 time), then the keyboard will automatically turn off the backlight and go into power-saving mode, which remind you to charge the keyboard immediately.