KEFEYA M2 User manual

Warm tips:
1. Please ensure type-c cable is connected well with the device interface.
2. This product supports full-featured type-c (charging and video),
integrated one line. If the screen cannot be powered on or
restarted, please supply external power of 12V, 1.25A.
KEFEYA M2 USER’S GUIDE
TRIPLE SCREEN
Contact Us: [e-mail]
LAPTOP SCREEN EXTENDER

Product Introduction
M2 is a 15.6-inch portable dual-screen splitter with a stand, which features a novel structure and
strong compatibility. The product adopts a full metal exterior material, making it more sturdy and
durable. The screen has full-function TYPE-C and HDMI (MINI) interface for external expansion, with
complete interfaces, strong compatibility, faster and more stable data transmission. It can quickly
set up a personal mobile workstation. Transform one computer into three or two, and simultaneously
view the content on three screens, increasing your productivity by 200% and enabling efficient
multitasking. It can solve the problem of insufficient screens and small screens in the original device.
The M2 product adopts a dual-link shell structure, and the screen supports 0-340 folding. The
screen comes with a stand, supports landscape and portrait display, and supports one-key
large-screen display. The upper screen supports one-key 180-degree rotation display. Users can
adjust it to the appropriate angle according to their actual needs. It is widely applicable and
meets various needs. It is convenient to carry, suitable for light entertainment and office work,
and is a comprehensive work and entertainment platform.
The M2 screen supports adjustment settings for brightness, sound, contrast, and other parameters,
and is equipped with MINI HDMI/TYPE-C interfaces. It can perform multi-functional video expansion.
As long as it is a signal+power combination TYPE-C laptop, it can achieve one-line connection display.
For computers that do not support dual-screen expansion, simply connect the included HUB, install
the driver, and connect it to the computer to light up the dual screens. It is convenient, quick, and
compatible.

Contents Of Instruction
Product Attributes
1. Product Host
2. Accessories
3. Parameters
Installation and stowing Mode
1. Opening Mode
2. Display Angle
3. Product Storage
Key Definitions
Connection Mode
1. Connect M2 with Laptop
2. Connect M2 with Mobile Phone
3. HDMI Connection
4. HUB Connection
Driver Installation
Audio Settings
1. Change Sound Settings of Windows 10 / Windows 11
2. Change Sound Settings of MAC OS PC
Display Mode
1. Windows 10 / Windows 11 Display Settings and Configuration
2. MacOS 13 Ventura Display Settings and Configuration
Transportation, Storage and Safety Information
1
1
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2
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Product Attributes
2. Accessories
1. Product Host
3. Parameters
360x220.65x20.75mm
Weight: Screen Size:
Panel Type:
Average Brightness:
Type-C Input:
Type-C Output:
Ports:
1.62 Kg
16:9
60Hz
1920x1080 P
Aspect Ratio:
Size:
Refresh Rate:
Resolution:
Speaker:
15.6 Inches
IPS Wide Viewing Angle
5V-20V / 5A Max
5V-20V / 4A Max
Type-C*2+MINI HDMI2
1
280CD/M2
Speaker
MINI HDMI
TYPE-C
POWER
KEY
Unpack the package and inspect the contents. If anything is missing or damaged,
please contact us at [e-mail].
USB-C to USB-C x2 HDMI to MINI HDMIHOST
POWER HUB

Installation And Stowing Mode
1. Opening Mode
2. Display Angle
2
To open the stand, you can adjust it to a
maximum angle of 135°.
Opening the Stand
The maximum opening angle of the
screen is 340°. It is strictly prohibited
to fold it excessively. Please open and
close it gently.
Landscape Display 270° Display
Portrait Display
Large Screen Display

Installation and Stowing Mode
3
Key Definitions
To switch to the
large screen
mode, gently
press for one
second.
Menu/Selection/Confirmation Button
Press and hold for 2 seconds to return. Press and hold for 3 seconds to shut down
To rotate the display 180°,
press for three seconds,
then press again for three
seconds to return to the
previous orientation
Toggle left "Minus”
Backlight Adjustment
Toggle right "Plus”
Volume Adjustment
3. Product Storage
Retracting the Stand
Retracting the Screen
①
②

4
①
②
Connection Mode
TYPE-C Connection:
If your laptop has one full-featured Type-C ports, you can connect the M2 directly to your laptop with
one Type-C cables.
If your laptop has an HDMI interface, you can connect the M2 to your laptop using an HDMI cable.
To power the M2, you can use a USB-C to USB-C adapter and connect it to the M2.
3. HDMI Connection
Mobile phone connection mode
(External power supply required)
Note: When using an HDMI connection, the
content will only be displayed on the
primary screen.
Notice:
If the display has no signal or the signal is unstable after connection, please connect an external
12V/1.25A power adapter to power the laptop
1. Connect M2 with Laptop
2. Connect M2 with Mobile Phone

Driver Installation
Connection Mode
5
please follow these steps:
1. Connect the HUB to the M2 using the Type-C and Mini HDMI interfaces.
2. Use aUSB-C to USB-C cable to connect your computer's
Type-C interface.
3. Use a USB-C to USB-C cable to provide power to the product
through the adapter.
4. Locate the "USM USB display" driver installation file on your computer and follow the prompts to
install the driver. Once the installation is complete, both screens light up.
Note: The USB/Type-C interface on your computer must meet or exceed the USB 3.0 transfer rat.
If your device is with Mac OS, you will need to connect the dedicated M2 model hub to activate
both screens. Please follow the steps below:
4. HUB Connection
HUB
HUB
USB DISPLAY
USBDISPLAY
Connect your computer to the device using a USB-C to USB-C cable.
1. MAC OS installation
Wait for approximately 10 seconds until the USB DISPLAY driver appears on your
computer's desktop. Double-click to enter, copy the driver file to a local folder on your
computer,select the USB-DisplayLink-V1.0.dmg file,and then choose the UsbDisplay.pkg file.
Follow the software prompts to install the driver,and restart the computer after the software
installation.
2. The driver installation is complete.

Audio Settings
6
M2
1. Change Sound Settings of Windows 10 / Windows 11
1.1 Right click the loudspeaker icon located in the bottom-right corner.
1.2 Select "switch on sound " in pop-up dialog box
1.3 Left click "turn on sound settings" and pop-up the box as provided
Here users can set about sound
1. Master volume;
2. Select output device: ( M2 / Speaker );
3. Device attributes.
Sound
Sound
output
System
Some apps can be set to use a different sound device than the one selected here.
Please customize the app volume and device in advanced sound selection.
Select output device
Device attribues
master volume

？
Audio Settings
7
2. Change Sound Settings of MAC OS PC
2.1. Choose Apple menu > System Settings
2.2. Click on "Output," and then choose the desired device from the list of available sound output options.
output devices：( M2 / Speaker )

8
Display Mode
1.2 Under the "Rearrange displays" section, drag and drop each display to rearrange them according to their
physical layout of your desktop. Scroll down to the bottom of the page to further configure the display for
extended or mirrored mode.
1.1 Right-click a blank area of the desktop. Select 'Display Settings' from the pop-up dialogue box.
Left click "Display Settings" to open the settings dialogue box, shown in the figure:
Sleep better
Night light can help you get to sleep
by displaying warmer colors at night.
Select Night light settings to set things
up.
Help from the web
Setting up multiple monitors
Changing screen brightness
Fixing screen flickering
Adjusting font size
Select a display below to change the settings for it. Press and hold (or select) a display,
then drag to rearrange it.
1. Windows 10 / Windows 11 Display Settings

Display Mode
9
2.1 Enter the “System Preferences” menu
2.2 Configure your monitor
2.3 Arrange Displays
To rearrange displays, drag them to the desired position.
To mirror displays, hold Option key while dragging them on top of each other.
To relocate the menu bar, drag it to a different display.
In this menu, you can set the resolution and mirror/extend the display you want.
2. MacOS 13 Ventura Display Settings

Transportation, Storage and Safety Information
10
To ensure the safe and proper use of this product and prevent accidents such as electric shock or
fire, please read and understand all use requirements and operation procedures before using.
Please adhere strictly to the following guidelines:
1. Before use, remove the protective film from the screen surface.
2. This product requires a DC power supply through an AC/DC power adapter. Ensure that the adapter
is placed away from heat sources in a well-ventilated location. The AC power socket and AC power
line should be adequately grounded to handle the current demands.
3. The DC power input required for this product is 5V-20V ± 2V.
4. Take precautions to prevent excessive humidity and dust accumulation, as they can lead to circuit
corrosion and malfunction.
5. Avoid subjecting the screen surface to external forces or impacts.
6. Do not use sharp tools that may damage the screen surface.
7. This product is suitable for general business and domestic use, and it is recommended to operate
it within an ambient temperature range of -20°C to 60°C.Please turn off the power when you stop
using produce.
8. Remember to power off the device by disconnecting the power source when not in use.

Contact Us
For any support you need, feel free to contact us via email at
[e-mail]
We are here to help and will do our best to respond within 24 hours.