Redragon K621 Horus TKL Wireless RGB Mechanical Keyboard User Manual

1. Introduction

Thank you for choosing the Redragon K621 Horus TKL Wireless RGB Mechanical Keyboard. This ultra-thin, low-profile keyboard offers versatile connectivity options including USB-C wired, Bluetooth 3.0/5.0, and 2.4GHz wireless modes. Designed for both Windows and macOS, it features dedicated media controls, on-the-fly macro keys, and customizable RGB backlighting. This manual provides detailed instructions to help you set up, operate, and maintain your new keyboard.

2. Package Contents

• Redragon K621 Horus TKL Wireless RGB Mechanical Keyboard
• USB-C to USB-A Cable
• 2.4GHz Wireless Dongle (stored in the keyboard's underside)
• Keycap Puller
• Switch Puller
• Extra Switches (4 pieces)
• User Manual

3. Product Overview

The Redragon K621 features a compact tenkeyless (80%) layout with 87 keys, designed for efficiency and comfort. Its low-profile design reduces actuation distance and provides more space for mouse movement. The keyboard includes dedicated media control buttons and a multi-function volume/lighting scroll wheel.

Image: Top view of the Redragon K621 Horus TKL keyboard, showcasing its compact layout and RGB lighting.

Image: Illustration highlighting the 80% TKL compact design of the Redragon K621 keyboard, showing its dimensions and ideal layout.

4. Setup

4.1. Charging the Keyboard

Connect the provided USB-C cable to the keyboard's port and the USB-A end to a power source (e.g., computer USB port, USB wall adapter). The keyboard's indicator light will show charging status.

4.2. Connecting via USB-C (Wired Mode)

• Ensure the keyboard's power switch (located on the left side) is in the 'ON' position.
• Connect the USB-C cable to the keyboard and your computer.
• Press Fn + 5 to switch to USB wired mode. The corresponding indicator light will illuminate.

4.3. Connecting via 2.4GHz Wireless Mode

• Locate the 2.4GHz wireless dongle stored in the magnetic cubby on the keyboard's underside.
• Plug the dongle into an available USB port on your computer.
• Ensure the keyboard's power switch is 'ON'.
• Press Fn + 4 to switch to 2.4GHz wireless mode. The keyboard will automatically connect to the dongle.

4.4. Connecting via Bluetooth Mode

• Ensure the keyboard's power switch is 'ON'.
• Press and hold Fn + 1, Fn + 2, or Fn + 3 for 3-5 seconds to enter Bluetooth pairing mode for BT1, BT2, or BT3 respectively. The corresponding key's backlight will flash rapidly.
• On your device (computer, laptop, tablet), enable Bluetooth and search for