Introduction
This manual provides essential information for the setup, operation, and maintenance of your Logitech MK120 Wired Keyboard and Mouse Combo. Please read these instructions carefully to ensure proper use and longevity of your product.

Image: The Logitech MK120 Wired Keyboard and Mouse Combo, featuring a full-size black keyboard and a black optical mouse, connected via USB cables.
What's in the Box
The Logitech MK120 package includes the following components:
- One (1) Logitech Wired Keyboard
- One (1) Logitech Wired Optical Mouse
- User Documentation (this manual)

Image: An overhead view showing the Logitech wired keyboard and mouse, representing the items included in the product packaging.
Setup Instructions
The Logitech MK120 combo is designed for simple plug-and-play functionality. No software installation is required.
- Connect the Keyboard: Locate an available USB port on your desktop, laptop, or netbook. Insert the USB connector of the keyboard into the USB port.
- Connect the Mouse: Locate another available USB port on your computer. Insert the USB connector of the mouse into the USB port.
- System Recognition: Your operating system (Windows 7, 8, 10, or later) will automatically detect and install the necessary drivers. This process may take a few moments.
- Ready for Use: Once the drivers are installed, your keyboard and mouse are ready for immediate use.

Image: A visual representation of the keyboard and mouse with a USB icon, illustrating the simple USB plug-and-play connection process.
Operating Instructions
Keyboard Operation
The Logitech MK120 keyboard features a standard layout with full-size F-keys and a number pad, designed for comfortable and quiet typing.
- Typing: The low-profile keys provide a comfortable typing experience.
- Function Keys (F1-F12): These keys perform various functions depending on the application or operating system. Refer to your software documentation for specific uses.
- Number Pad: Use the dedicated number pad for efficient data entry. Ensure 'Num Lock' is activated if numbers are not registering.
- Adjustable Tilt Legs: For an ergonomic typing angle, extend the tilt legs located on the underside of the keyboard. This adjusts the keyboard to a 4-degree incline.

Image: Hands positioned on the Logitech MK120 keyboard, demonstrating a familiar and comfortable typing posture.

Image: A side view of the Logitech MK120 keyboard, illustrating the adjustable tilt legs that provide a 4-degree typing angle.
Mouse Operation
The high-definition optical mouse offers smooth and accurate tracking with an ambidextrous design.
- Left-Click Button: Primary button for selecting items, opening files, and executing commands.
- Right-Click Button: Secondary button for accessing context menus and additional options.
- Scroll Wheel: Used for scrolling through documents and web pages. It can also function as a middle-click button.
- Optical Tracking: The mouse uses optical technology for precise cursor movement on various surfaces.

Image: A hand operating the Logitech MK120 mouse, highlighting its full-size comfort and ambidextrous design.
Maintenance
Proper care helps maintain the performance and appearance of your Logitech MK120 combo.
- Cleaning the Keyboard: Use a soft, damp cloth to wipe the surface of the keyboard. For stubborn dirt between keys, a can of compressed air can be used to dislodge debris. The keyboard features a spill-resistant design, meaning it can withstand minor liquid spills (up to 60 ml). However, it is not waterproof; avoid immersing it in liquid.
- Cleaning the Mouse: Wipe the mouse surface with a soft, damp cloth. Ensure the optical sensor on the underside remains clean and free of obstructions for optimal tracking.
- Cable Management: Avoid sharp bends or excessive pulling on the USB cables to prevent damage.

Image: The Logitech MK120 keyboard with water droplets on its surface, demonstrating its spill-resistant design. Note: Do not immerse the keyboard in liquid.
Troubleshooting
If you encounter issues with your Logitech MK120 combo, try the following steps:
- Device Not Recognized:
- Ensure both the keyboard and mouse USB connectors are securely plugged into your computer's USB ports.
- Try plugging the devices into different USB ports on your computer.
- Restart your computer.
- Keyboard Keys Not Responding:
- Check for any physical obstructions under the keys.
- Ensure 'Num Lock' or 'Caps Lock' indicators are as expected.
- Test the keyboard on another computer if possible to rule out a computer-specific issue.
- Mouse Cursor Not Moving or Tracking Poorly:
- Ensure the optical sensor on the underside of the mouse is clean and free of dust or debris.
- Use the mouse on a clean, non-reflective surface. Mouse pads are recommended.
- Test the mouse on another computer if possible.
- Intermittent Connectivity:
- Ensure USB connections are firm.
- Avoid using USB hubs if possible, or try connecting directly to the computer's USB ports.
If problems persist after following these steps, please refer to the Warranty and Support section for further assistance.
Specifications
| Feature | Detail |
|---|---|
| Brand | Logitech |
| Model Number | 920-002565 |
| Connectivity Technology | USB |
| Color | Black |
| Keyboard Layout | Full-size with Number Pad |
| Mouse Type | Optical, Ambidextrous |
| Compatible Devices | PC, Laptop (Windows 7, 8, 10, or later) |
| Product Dimensions | 6.1 x 17.71 x 0.92 inches (Keyboard) |
| Item Weight | 3.53 ounces (Keyboard) |
| Special Feature | Ergonomic (Adjustable Tilt Legs), Spill-resistant design |
Warranty and Support
Logitech products are manufactured to high-quality standards. For detailed warranty information, please refer to the documentation included with your product or visit the official Logitech website.
For additional support, including FAQs and driver downloads, please visit the Logitech Support website.
A digital version of this user manual is available for download: Logitech MK120 User Manual (PDF).





