1. Introduction
This manual provides instructions for the ASUS ZenScreen MB166C 15.6-inch Full HD portable monitor. It covers product features, setup procedures, operational guidelines, maintenance tips, and troubleshooting information to ensure optimal use of your device.
The ASUS ZenScreen MB166C is designed for portability and ease of use, featuring a 15.6-inch Full HD (1920x1080) IPS panel. It connects and receives power via a single USB Type-C cable, supporting DisplayPort Alternate Mode. The monitor incorporates ASUS Eye Care technologies, including TÜV Rheinland-certified Flicker-Free and Low Blue Light features, to enhance viewing comfort.

Image 1.1: ASUS ZenScreen MB166C portable monitor.
2. Package Contents
Verify that all items are present in your product package. If any item is missing or damaged, contact your retailer.
- ASUS ZenScreen MB166C Portable Monitor
- USB Type-C cable
- Quick start guide
- ZenScreen sleeve (doubles as a stand)
- Warranty card

Image 2.1: Included items in the product package.
3. Setup
3.1 Connecting the Monitor
The ASUS ZenScreen MB166C utilizes a single USB Type-C connection for both power and video signal. Ensure your host device (laptop, smartphone, etc.) supports DisplayPort Alternate Mode over USB Type-C.
- Connect one end of the provided USB Type-C cable to the USB Type-C port on the ASUS ZenScreen MB166C.
- Connect the other end of the USB Type-C cable to a compatible USB Type-C port on your host device.
- The monitor should automatically power on and display the content from your host device.

Image 3.1: Connecting the monitor with a single USB Type-C cable.
3.2 Physical Setup and Positioning
The included ZenScreen sleeve can be folded to serve as a stand, supporting the monitor in both landscape and portrait orientations. The monitor also features a built-in tripod socket for versatile mounting options.
- Using the Sleeve as a Stand: Fold the sleeve according to the diagrams in the quick start guide to create a stable stand.
- Tripod Mounting: A standard tripod socket is located on the rear of the monitor, allowing for secure attachment to compatible tripods or stands (tripod not included).

Image 3.2: Monitor mounted on a tripod for comfortable viewing.
4. Operating Instructions
4.1 Power On/Off
The monitor typically powers on automatically when connected to a compatible host device via USB Type-C. To manually power off or on, use the power button located on the side or bottom bezel of the monitor.
4.2 DisplayWidget Software
For enhanced functionality, including automatic orientation detection and switching between landscape and portrait modes, install the ASUS DisplayWidget software on your host device. This software allows for advanced display settings and management.
4.3 Orientation Adjustment
The monitor supports both landscape and portrait orientations. When DisplayWidget software is installed, the monitor can automatically detect and adjust its orientation. Manual rotation is also possible by physically rotating the monitor.

Image 4.1: Working efficiently in portrait and landscape mode.
4.4 ASUS Eye Care Features
The ZenScreen MB166C is equipped with TÜV Rheinland-certified Flicker-Free and Low Blue Light technologies to reduce eye strain during extended use.
- Flicker-Free Technology: Eliminates screen flickering, which can cause eye fatigue.
- Low Blue Light Technology: Reduces harmful blue light emissions, which can disrupt sleep patterns and cause eye discomfort.

Image 4.2: TÜV Rheinland certification for eye care features.

Image 4.3: Visual representation of Flicker-Free technology.
5. Maintenance
To ensure the longevity and optimal performance of your ASUS ZenScreen MB166C, follow these maintenance guidelines:
- Cleaning the Screen: Use a soft, lint-free cloth slightly dampened with water or a non-abrasive screen cleaner. Avoid using alcohol-based cleaners or harsh chemicals.
- Cleaning the Casing: Wipe the monitor casing with a soft, dry cloth.
- Storage: When not in use, store the monitor in its protective sleeve to prevent scratches and dust accumulation.
- Handling: Avoid applying excessive pressure to the screen or dropping the device.
- Environmental Conditions: Operate and store the monitor within recommended temperature and humidity ranges to prevent damage.
6. Troubleshooting
If you encounter issues with your ASUS ZenScreen MB166C, refer to the following common troubleshooting steps:
| Problem | Possible Solution |
|---|---|
| No display/"No Signal" message |
|
| Screen flickering |
|
| Display not rotating automatically |
|
| Image quality issues (e.g., blurry, incorrect colors) |
|
7. Specifications
| Feature | Specification |
|---|---|
| Model | MB166C |
| Screen Size | 15.6 Inch |
| Panel Type | IPS |
| Resolution | 1920 x 1080 (FHD) |
| Brightness | 250 cd/m² |
| Contrast Ratio | 625:1 |
| Response Time | 5 Milliseconds |
| Refresh Rate | 60 Hz |
| Aspect Ratio | 16:9 |
| Display Surface | Matte |
| Connectivity | USB Type-C (DisplayPort Alt Mode) |
| Power Consumption | 8 Watts |
| Product Dimensions | 43 x 30 x 8 cm |
| Weight | 1.5 kg |
| Eye Care Features | Flicker-Free, Low Blue Light (TÜV Rheinland Certified) |
8. Warranty and Support
For warranty information, please refer to the warranty card included in your product package or visit the official ASUS support website. ASUS provides customer support and service for its products.
If you require technical assistance or have questions not covered in this manual, please contact ASUS customer support through their official channels. You can typically find contact information on the ASUS website or in your product documentation.
Online Support: Visit the official ASUS support website for drivers, manuals, FAQs, and troubleshooting resources.
Contact Information: Refer to your regional ASUS website for specific phone numbers or email support options.





