📋 SPECIFICATION

• 🏷️ Brand: FANTECH
• ⌨️ Model: MK921
• 🎮 Series: MAXFIT8
• 🎨 Colour: Black
• 🔢 Number of Keys: 80
• ⚙️ Keyboard Type: Mechanical
• 📡 Connection Modes: 3
• ⚡ Wireless: 2.4GHz
• 🔵 Bluetooth Version: 5.3
• 🔌 Wired Connection: USB-C
• ⚪ Switch Option: White – Soft Linear
• 🟤 Switch Option: Brown – Tactile Quiet
• 🔄 Hot-Swappable: Yes
• ⚙️ Hot-Swap Support: 5-Pin
• ⬇️ Switch Orientation: South-Facing
• 🛏️ Structure: Gasket Mount
• 🎮 Anti-Ghosting: Full-Key
• 🎨 Firmware: QMK
• ⚙️ Customization: VIA Compatible
• 🌈 Lighting: RGB
• ✨ Lighting Effects: 46 Modes
• 🎚️ Control: Multifunction Rotary Encoder
• 🔠 Keycaps: PBT Double-Shot
• 📐 Keycap Profile: Cherry
• 🔋 Battery Capacity: 4000mAh
• 🌙 Battery Life – RGB Off: Up to 250 Hours
• 🌈 Battery Life – RGB On: Up to 20 Hours
• ⚡ Charging Time: Approximately 7 Hours
• 🔌 Interface: USB-C
• 🧵 Cable: 1.6m Nylon-Braided
• ⚡ Power Rating: 5V / 209mA
• 📐 Dimensions: Approximately 323 × 147 × 46mm
• 💻 Compatibility: Windows 7 or Later / macOS 10.11 or Later

⚪🟤 MECHANICAL SWITCH OPTIONS

The MAXFIT8 MK921 is available with two mechanical switch options.

⚪ WHITE SWITCH – SOFT LINEAR

White switches provide a smooth and soft linear keypress, making them particularly suitable for fast gaming and users who prefer consistent key travel without a pronounced tactile bump.

Ideal for:

• 🔫 FPS Gaming
• ⚔️ Action Games
• 🏎️ Racing Games
• 🎮 Fast Repeated Inputs
• ⌨️ Smooth Everyday Typing

🟤 BROWN SWITCH – TACTILE QUIET

Brown switches provide noticeable tactile feedback while maintaining a quieter character than traditional clicky switches.

Ideal for:

• 🎮 Gaming
• ⌨️ Typing
• 💻 Productivity
• 🎥 Content Creation
• 🏠 Gaming & Office Setups

Switch supplied depends on the selected keyboard variant.

📡 3-MODE / TRI-MODE CONNECTIVITY

The MAXFIT8 provides three ways to connect to your devices.

⚡ 2.4GHz Wireless

Use the wireless receiver for convenient cable-free gaming and everyday use.

🔵 Bluetooth 5.3

Connect wirelessly to compatible Bluetooth devices without requiring the 2.4GHz receiver.

🔌 USB-C Wired

Connect directly through USB-C for reliable wired operation while charging the keyboard.

This flexibility makes the MK921 suitable for gaming desktops, laptops and multi-device workstations.

🎨 QMK & VIA COMPATIBLE

One of the biggest advantages of the MAXFIT8 is its support for QMK and VIA.

QMK is an open-source keyboard firmware platform, while VIA provides a convenient interface for customizing supported keyboard functions.

Depending on your configuration, you can personalize:

• ⌨️ Key Assignments
• 🎯 Macros
• ⚙️ Layers
• 🎮 Gaming Commands
• 💻 Productivity Shortcuts
• 🎛️ Custom Functions

This makes the MK921 particularly attractive to mechanical keyboard enthusiasts who want greater control over their keyboard.

🔄 5-PIN HOT-SWAPPABLE DESIGN

Customize your keyboard without soldering.

The 5-pin hot-swappable PCB allows compatible mechanical switches to be removed and replaced individually.

Experiment with compatible:

• ⚪ Linear Switches
• 🟤 Tactile Switches
• 🔵 Clicky Switches

This also makes replacing an individual switch easier if required.

⬇️ SOUTH-FACING SWITCH ORIENTATION

The MAXFIT8 uses a south-facing switch orientation, a design commonly preferred for enthusiast mechanical keyboards.

It provides greater flexibility when using different compatible keycap profiles and contributes to the MK921’s customization-focused design.

🛏️ GASKET-MOUNTED CONSTRUCTION

The MAXFIT8 features a gasket-mounted internal structure designed to provide a more refined typing feel and acoustic character.

Compared with a basic rigid keyboard construction, the gasket system helps create a more cushioned and controlled typing experience.

🔠 PBT DOUBLE-SHOT KEYCAPS

Premium PBT Double-Shot keycaps provide improved durability and resistance to everyday wear.

The Cherry Profile provides a comfortable sculpted shape suitable for both gaming and long typing sessions.

Benefits include:

• 🛡️ Excellent Durability
• ✨ Reduced Shine Over Time
• ⌨️ Comfortable Typing Feel
• 🎮 Gaming-Friendly Profile
• 🔠 Long-Lasting Legends

🎚️ MULTIFUNCTION ROTARY ENCODER

The integrated rotary encoder provides convenient control directly from the keyboard.

Use the knob for supported functions such as:

• 🔊 Volume Adjustment
• 🌈 RGB Control
• ⚙️ Other Supported Keyboard Functions

This makes quick adjustments easier without interrupting your game or workflow.

🌈 46 RGB LIGHTING MODES

Customize your setup with an extensive selection of 46 RGB lighting effects.

Choose between different lighting styles to match your:

• 🎮 Gaming Setup
• 🖥️ Gaming PC
• 🖱️ RGB Mouse
• 🎧 Gaming Headset
• 🌈 Desktop Theme

🎮 FULL-KEY ANTI-GHOSTING

Full-key anti-ghosting helps ensure multiple simultaneous keypresses register correctly during demanding gameplay.

This is particularly useful for:

• 🔫 FPS Games
• ⚔️ Action Games
• 🧙 RPG Games
• 🏎️ Racing Games
• 🏆 Competitive Gaming

🔋 4000mAh RECHARGEABLE BATTERY

The MAXFIT8 features a large 4000mAh rechargeable battery for extended wireless use.

Rated battery performance:

• 🌙 RGB Off: Up to 250 Hours
• 🌈 RGB On: Up to 20 Hours
• ⚡ Charging: Approximately 7 Hours

Actual battery life depends on connection mode, RGB brightness, lighting effects and usage.

🔢 COMPACT 80-KEY DESIGN

The 80-key layout provides an excellent balance between compact gaming keyboards and conventional full-size designs.

Its reduced footprint provides:

• 🖱️ More Mouse Movement Space
• 🎮 Better Gaming Desk Ergonomics
• 🖥️ Cleaner Desktop Setup
• 🎒 Easier Transportation
• 💻 More Workspace

It’s an excellent choice for users who don’t require a dedicated numeric keypad.

💻 WINDOWS & macOS COMPATIBLE

The MAXFIT8 is designed for use with modern Windows and macOS systems.

Official compatibility includes:

• 🪟 Windows 7 or Later
• 🍎 macOS 10.11 or Later

📦 WHAT’S INCLUDED

• ⌨️ 1 × FANTECH MAXFIT8 MK921 QMK Wireless Mechanical Keyboard – Black
• 📡 1 × 2.4GHz Wireless Receiver
• 🔌 1 × USB-C Data Cable
• ⚙️ 2 × Extra Mechanical Switches
• ✨ 2 × Extra Accent Keys
• 🔧 1 × Keycap & Switch Puller
• 📖 1 × Quick Start Guide
• 🛡️ 1 × Warranty Card