1. Introduction
The Nuphy Air75 V2 is a portable 75% mechanical keyboard designed for versatility and performance. It features multi-device connectivity, customizable RGB backlighting, and QMK/VIA support for advanced key remapping. This manual provides essential information for setting up, operating, and maintaining your keyboard.
2. What's in the Box
Carefully unbox your Nuphy Air75 V2 keyboard and ensure all components are present:
- Nuphy Air75 V2 Mechanical Keyboard
- USB-C to USB-A Cable
- Keycap/Switch Puller Tool
- Extra Keycaps (for Mac/Windows layouts)
- 2.4G Wireless Dongle
- Sticker Sheet
- Quick Guide/Manual Poster
Video 1: Official unboxing experience of the Nuphy Air75 V2 Wireless Keyboard, showing all components.
3. Setup and Connectivity
3.1 Initial Charge
Before first use, connect the keyboard to a USB-C power source using the provided USB-C cable. The battery indicator light on the right side of the keyboard will show charging status.
Battery Life: The 4000mAh battery provides approximately 35-57 hours of continuous use with RGB backlighting on, and up to 220 hours with backlighting off.
3.2 System Compatibility Switch
Locate the switch on the top edge of the keyboard to select your operating system (Windows/Mac). Ensure it matches your device for proper key mapping.
Figure 1: Top view of the Nuphy Air75 V2 keyboard, showing the system compatibility switch.
3.3 Connectivity Modes
The Air75 V2 supports three connectivity modes:
- Wired (USB-C): Connect the keyboard directly to your device using the USB-C cable.
- 2.4G Wireless: Insert the 2.4G wireless dongle into a USB port on your device. Switch the keyboard to 2.4G mode using the switch on the top edge.
- Bluetooth 5.1: Switch the keyboard to Bluetooth mode. Press and hold Fn + 1/2/3/4 to pair with up to four devices. The keyboard supports simultaneous connection to multiple devices.
Figure 2: Side view of the keyboard highlighting the USB-C port and wireless mode switches.
3.4 Adjustable Feet
The keyboard features two-stage adjustable feet on the bottom for ergonomic typing angles. Flip them out to your preferred height.
Figure 3: Underside of the keyboard with adjustable feet extended.
4. Operating Instructions
4.1 Key Functions
The 75% layout includes a full function row (F1-F12) and essential navigation keys. Refer to the quick guide for specific key combinations and shortcuts.
Figure 4: Overview of the Nuphy Air75 V2 keyboard layout.
4.2 RGB Backlighting
The Air75 V2 features over 21 different RGB backlight effects. Use key combinations (refer to manual poster) to cycle through effects, adjust brightness, and change colors. The left side light bar indicates Caps Lock and connection mode, while the right bar shows battery level and system mode.
Figure 5: Nuphy Air75 V2 keyboard showcasing its RGB backlighting.
4.3 QMK/VIA Customization
The keyboard supports QMK/VIA firmware, allowing for extensive customization of key remapping, macros, and lighting effects through a dedicated console application. This open-source compatibility provides limitless possibilities for personalization.
Figure 6: Screenshot of the QMK/VIA software interface for advanced keyboard customization.
Video 2: Detailed review of NuPhy Air 75 V2, including a demonstration of QMK/VIA customization.
4.4 Hot-swappable Switches
The Air75 V2 is hot-swappable, allowing you to easily replace or upgrade switches without soldering. Use the included keycap/switch puller tool to remove and insert switches.
Figure 7: Close-up view of the hot-swappable switch sockets on the Nuphy Air75 V2.
The keyboard comes with Gateron Brown switches. Other compatible switch types include Gateron Red, Blue, Aloe, Wisteria, Moss, and Cowberry. A sample of different switch types is included for testing.
Figure 8: Gateron Brown 2.0 switches, a tactile switch with 55gf operating force.
5. Maintenance
5.1 Cleaning
The PBT keycaps are durable and resistant to wear. To clean, gently wipe with a damp, lint-free cloth. For deeper cleaning, remove keycaps using the puller tool and clean individually.
5.2 Battery Care
To prolong battery life, turn off the keyboard when not in use for extended periods. Avoid exposing the keyboard to extreme temperatures.
6. Troubleshooting
- Connectivity Issues: Ensure the system switch matches your OS. For Bluetooth, re-pair the device. For 2.4G, ensure the dongle is properly inserted and the keyboard is in 2.4G mode.
- Backlight Not Working: Check brightness settings. Ensure the keyboard is charged.
- Keys Not Responding: If a specific key is not working, try hot-swapping the switch with a known working one to diagnose if the switch or socket is faulty.
7. Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 12.46 x 5.22 x 0.53 inches |
| Item Weight | 1.15 pounds |
| Battery Capacity | 4000mAh (1 9V battery required) |
| Compatible Devices | Laptop, PC, Tablet (Windows/Mac OS/Linux/Android/iOS) |
| Connectivity Technology | Bluetooth 5.1, 2.4GHz, USB-C |
| Keyboard Description | Mechanical (75% layout, 84 keys) |
| Special Feature | Ergonomic, Hot-swappable, QMK/VIA support |
| Backlighting | RGB (21+ effects) |
| Keycap Material | Double-shot PBT |
8. Warranty and Support
For warranty information and technical support, please visit the official Nuphy website or contact their customer service. Keep your purchase receipt for warranty claims.
