Introduction
The Penclic C3 Office Keyboard is a compact, wired USB keyboard designed for both PC and Mac users. It features a full-size key layout, an ergonomic design to promote natural hand positioning, and an integrated 3-port USB hub for convenient connectivity. This manual provides comprehensive instructions for setting up, operating, maintaining, and troubleshooting your Penclic C3 keyboard.

Figure 1: Penclic C3 Office Keyboard - Top View
Key Features:
- Swedish Design: Durable construction with a sleek, modern, and minimalist aesthetic.
- Ergonomic Setup: Compact design promotes natural arm and wrist positioning, reducing tension.
- Integrated 3-Port USB Hub: Conveniently charge devices, read USB drives, or connect a mouse directly through the keyboard.
- Wired USB Connection: Ensures a stable and secure connection to your computer with a 4.9 ft (1.5 m) cable.
- Quiet Tactile Typing: Offers a smooth, responsive typing experience with optimal key travel and quiet clicks.
- Lightweight and Compact: Easy to store and transport for travel.
Setup
1. Connecting the Keyboard:
The Penclic C3 keyboard connects to your computer via a standard USB-A cable. Simply plug the USB connector from the keyboard into an available USB port on your PC or Mac. The keyboard is plug-and-play and does not require additional drivers for basic functionality.
2. Using the Integrated USB Hub:
The keyboard features three integrated USB ports located on the back edge. These ports can be used to connect low-power USB devices such as a mouse, USB flash drive, or to charge small devices like a smartphone or tablet. Note that the orientation of the USB ports is designed for specific cable routing and may appear inverted to some users; this is intentional for the keyboard's compact design.

Figure 2: Integrated 3-Port USB Hub
3. PC and Mac Mode Switching:
The Penclic C3 keyboard is designed for seamless compatibility with both Windows (PC) and macOS (Mac) operating systems. To switch between modes, use the following key combinations:
- For Windows (PC) Mode: Press Fn + W
- For macOS (Mac) Mode: Press Fn + E
Switching modes reconfigures the functionality of certain keys, such as the Command (Cmd) and Alt keys, to align with the conventions of the selected operating system.
Operating Instructions
Basic Typing:
The keyboard features a standard QWERTY layout with full-size keys, providing a familiar and comfortable typing experience. The keys are designed for optimal travel and a quiet, tactile response.
Function Keys (F1-F12):
The top row of keys functions as standard F1-F12 keys. In some operating systems or applications, these keys may have secondary multimedia or system control functions. To access these secondary functions, typically press and hold the Fn key simultaneously with the desired function key.
Multimedia Keys:
Specific multimedia controls are integrated into the keyboard. For example, volume control can be accessed by pressing Fn + S for volume down and Fn + D for volume up. Refer to your operating system's settings for full customization of these keys.

Figure 3: Keyboard in Use with a Laptop Setup
Maintenance
Cleaning:
To clean your Penclic C3 keyboard, disconnect it from your computer. Use a soft, lint-free cloth lightly dampened with water or a mild, non-abrasive cleaning solution. Avoid spraying liquids directly onto the keyboard. For cleaning between keys, a can of compressed air can be used to remove dust and debris.
Storage:
When not in use, store the keyboard in a clean, dry environment away from extreme temperatures and direct sunlight. Its compact and lightweight design makes it easy to store in a drawer or carry bag.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Keyboard not responding. | Loose USB connection, faulty USB port, incorrect mode. | Ensure the USB cable is securely plugged into both the keyboard and the computer. Try a different USB port on your computer. Verify the keyboard is in the correct PC or Mac mode (Fn + W/E). Restart your computer. |
| Keys are "sticky" or not registering. | Debris under keys, physical damage. | Use compressed air to clear debris from under the keys. Clean the keycaps as described in the Maintenance section. If the issue persists, contact support. |
| Integrated USB hub not working. | Device requires more power than available, loose connection, incompatible device. | Ensure the device connected to the hub is low-power. Try connecting the device directly to your computer's USB port to confirm functionality. Re-plug the device into the keyboard's USB hub. |
| Keyboard wobbles on flat surface. | Uneven surface, new rubber feet. | Ensure the surface the keyboard is placed on is flat and stable. New rubber feet may take some time to fully adhere and settle, which can reduce initial wobbling. |
| Function keys (F1-F12) or multimedia keys not working as expected. | Incorrect mode, operating system settings. | Ensure the keyboard is in the correct PC or Mac mode (Fn + W/E). Check your operating system's keyboard settings for function key behavior and multimedia key assignments. Remember to use the Fn key for secondary functions if applicable. |
Specifications
- Brand: Penclic
- Model: C3 Office Keyboard
- Connectivity Technology: USB Wired
- Compatible Devices: PC, Mac (via USB)
- Keyboard Description: Compact USB Keyboard with Full-Size Keys
- Special Feature: Integrated 3-Port USB Hub, Ergonomic Design, Travel-friendly
- Color: Grey
- Material: Plastic
- Item Weight: 1.2 pounds
- Package Dimensions: 12.25 x 7.5 x 1 inches
- Date First Available: May 6, 2019
Warranty and Support
For information regarding the product warranty, please refer to the warranty card included with your purchase or visit the official Penclic website. Warranty terms and conditions may vary by region and retailer.
If you require technical assistance or have questions not covered in this manual, please contact Penclic customer support through their official website or the contact information provided with your product packaging. When contacting support, please have your product model (C3 Office Keyboard) and purchase details ready.
Penclic Official Website: Visit the Penclic Store on Amazon (for general brand information)




