Introduction
The Newmen GM840 is a versatile 75% mechanical gaming keyboard designed for optimal performance and customization. It features a compact 84-key layout, offering a balance between functionality and desk space. With triple connectivity modes (wired, 2.4G wireless, and Bluetooth), hot-swappable switches, vibrant RGB backlighting, and durable PBT keycaps, the GM840 provides a premium typing and gaming experience across multiple platforms including Windows, Mac, and Android devices.
Image: Overview of the Newmen GM840 Mechanical Keyboard highlighting its main features such as connection modes, RGB backlighting, hot-swappable design, multimedia functions, macro settings, N-Key rollover, 3000mAh battery, and ergonomic support.
Package Contents
Please check the package for the following items:
- Newmen GM840 Mechanical Keyboard
- USB-C Cable
- 2-in-1 Keycap & Switch Puller
- Extra Switches (quantity may vary)
- User Manual
Image: The Newmen GM840 keyboard package contents, including the keyboard, a clear dust cover, a keycap and switch puller, a USB-C cable, the user manual, and a set of extra switches.
Setup and Connectivity
The Newmen GM840 keyboard supports three connection modes: wired, 2.4G wireless, and Bluetooth. Ensure the mode switch on the back of the keyboard is set to your desired connection type.
1. Wired Connection
- Locate the USB-C port on the keyboard.
- Connect the provided USB-C cable to the keyboard and the other end to an available USB port on your computer.
- The keyboard will be automatically recognized and ready for use.
2. 2.4G Wireless Connection
- Locate the 2.4G USB receiver (dongle) in the keyboard's storage slot or packaging.
- Plug the 2.4G USB receiver into an available USB port on your computer.
- Set the mode switch on the keyboard to 2.4G mode.
- The keyboard should connect automatically. If not, press Fn + R to initiate pairing.
3. Bluetooth Connection
The keyboard can connect to up to three Bluetooth devices simultaneously.
- Set the mode switch on the keyboard to Bluetooth mode.
- To enter pairing mode, press and hold Fn + Q, Fn + W, or Fn + E for 3-5 seconds until the corresponding key (Q, W, or E) flashes rapidly. This indicates the keyboard is ready to pair.
- On your device (computer, smartphone, tablet), open Bluetooth settings and search for "Newmen GM840".
- Select the keyboard to pair. The corresponding key (Q, W, or E) will stop flashing once connected.
- To switch between paired Bluetooth devices, simply press Fn + Q, Fn + W, or Fn + E.
Image: The Newmen GM840 keyboard displaying its three connection modes: USB-C for wired, 2.4G for wireless, and Bluetooth for multi-device pairing.
Image: The Newmen GM840 keyboard wirelessly connected to a laptop, smartphone, and tablet, illustrating its ability to connect to three devices via Bluetooth.
Operating Instructions
RGB Backlighting Control
The Newmen GM840 features 19 RGB backlight effects, 4 brightness levels, and 5 lighting speed levels. You can customize these settings directly on the keyboard or through the dedicated software driver.
- Fn + \|: Cycle through 19 backlight effects.
- Fn + ↑: Increase backlight brightness (4 levels).
- Fn + ↓: Decrease backlight brightness (4 levels).
- Fn + ←: Decrease backlight speed (5 levels).
- Fn + →: Increase backlight speed (5 levels).
Image: The Newmen GM840 keyboard showcasing its dynamic RGB backlighting with multiple colors and patterns.
Image: Visual guide on how to adjust the RGB backlight effect, speed, and brightness using key combinations on the Newmen GM840 keyboard.
Multimedia Functions
The keyboard includes 12 dedicated multimedia function buttons accessible via the Fn key combinations:
- Fn + F1: My Computer
- Fn + F2: Search
- Fn + F3: Calculator
- Fn + F4: Media Player
- Fn + F5: Previous Track
- Fn + F6: Next Track
- Fn + F7: Play/Pause
- Fn + F8: Stop
- Fn + F9: Mute
- Fn + F10: Volume Down
- Fn + F11: Volume Up
- Fn + F12: Email
Image: The Newmen GM840 keyboard with the F-row keys highlighted, indicating their secondary multimedia functions when pressed with the Fn key.
Macro Recording Function
The Newmen GM840 supports powerful macro recording through its dedicated software driver. Download the software from the official Newmen website to customize key functions and create complex macros.
Image: A screenshot of the Newmen keyboard software interface, showing options to customize keyboard keys, backlight effects, and macro functions.
Image: The Newmen keyboard software interface, illustrating its capabilities for customizing key assignments, backlight effects, and setting up custom macro functions.
Hot-Swappable Switches and Keycaps
The GM840 features a hot-swappable design, allowing you to easily change 3-pin mechanical switches and keycaps without soldering. This enables personalized customization of your typing feel and aesthetics.
- Use the provided 2-in-1 keycap & switch puller.
- To remove a keycap, gently hook the keycap puller under the edges of the keycap and pull upwards.
- To remove a switch, use the switch puller to grip the top and bottom clips of the switch and pull straight up.
- To install a new switch, align its pins with the holes on the PCB and press down firmly until it clicks into place. Ensure pins are not bent.
- To install a new keycap, simply align it with the switch stem and press down.
Image: The Newmen GM840 keyboard with several keycaps and switches removed, demonstrating its hot-swappable feature for easy customization.
N-Key Rollover
The GM840 supports N-Key Rollover in both wired and wireless modes, ensuring that every keystroke is registered accurately, even when multiple keys are pressed simultaneously. This is crucial for fast-paced gaming and typing.
Specifications
- Model: GM840
- Layout: 75% (84 Keys)
- Connectivity: Wired (USB-C), 2.4G Wireless, Bluetooth (up to 3 devices)
- Switch Type: Mechanical (3-pin hot-swappable)
- Keycaps: PBT Material
- Backlighting: RGB (19 effects, 4 brightness, 5 speed levels)
- N-Key Rollover: Supported in wired and wireless modes
- Battery: 3000mAh built-in battery
- Compatibility: Windows 7/8/10/11, Mac OS 10, Android, iOS
- Special Features: Macro recording (via software), Ergonomic design
- Dimensions: 16.42 x 7.24 x 2.17 inches
- Weight: 2.25 pounds
Switch Characteristics
The GM840 is available with different switch types, each offering a unique feel:
| Switch Type | Operation Force | Pretravel | Total Travel | Operation Life |
|---|---|---|---|---|
| Red (Linear) | 45 ± 15gf | 2.0 ± 0.6mm | 4.0mm Max | 60,000,000 Cycles (min) |
| Brown (Tactile) | 45 ± 15gf | 2.0 ± 0.6mm | 4.0mm Max | 60,000,000 Cycles (min) |
| Blue (Clicky) | 60 ± 15gf | 2.3 ± 0.6mm | 4.0mm Max | 50,000,000 Cycles (min) |
Image: Detailed specifications for Red (Linear), Brown (Tactile), and Blue (Clicky) mechanical switches, including operation force, pretravel, total travel, and operation life.
Maintenance
Proper maintenance ensures the longevity and performance of your Newmen GM840 keyboard.
- Cleaning Keycaps: Use a keycap puller to remove keycaps. Clean them with a soft cloth dampened with mild soap and water. Ensure they are completely dry before reattaching.
- Cleaning the Keyboard Body: Use a soft, dry cloth to wipe down the keyboard body. For stubborn dirt, a slightly damp cloth can be used, but avoid excessive moisture.
- Cleaning Switches: If dust or debris gets into the switches, use compressed air to clear it. Avoid spraying liquids directly into the switches.
- Cable Care: Avoid sharp bends or kinks in the USB-C cable to prevent damage.
- Storage: When not in use, store the keyboard in a clean, dry environment. The included dust cover can help protect it from dust and spills.
Troubleshooting
If you encounter issues with your Newmen GM840 keyboard, refer to the following common solutions:
- Keyboard Not Responding (Wired): Ensure the USB-C cable is securely connected to both the keyboard and the computer. Try a different USB port or cable.
- Keyboard Not Responding (2.4G Wireless): Ensure the 2.4G dongle is securely plugged in and the keyboard is in 2.4G mode. Try re-pairing by pressing Fn + R. Check battery level.
- Keyboard Not Responding (Bluetooth): Ensure the keyboard is in Bluetooth mode and paired correctly (Fn + Q/W/E). Try re-pairing the device. Ensure Bluetooth is enabled on your host device. Check battery level.
- Backlighting Not Working/Incorrect: Ensure the keyboard is powered on. Adjust brightness using Fn + ↑/↓. Cycle through effects using Fn + \|. If using software, ensure settings are applied.
- Keys Not Registering: For specific keys, try removing the keycap and switch (if hot-swappable) and re-seating them. Clean any debris around the switch. If the issue persists, consider replacing the switch with one of the included spares.
- Lag or Disconnections in Wireless Mode: Ensure the keyboard is within range of the receiver/device. Minimize interference from other wireless devices. Ensure the keyboard battery is sufficiently charged.
- Software Not Recognizing Keyboard: Ensure the keyboard is connected via wired mode when attempting to use the software. Download the latest software version from the official Newmen website.
Warranty and Support
Newmen products are designed and manufactured to the highest quality standards. For information regarding warranty coverage, technical support, or service inquiries, please refer to the warranty card included in your package or visit the official Newmen website. Keep your proof of purchase for warranty claims.
