1. Introduction
This instruction manual provides detailed guidance for setting up and operating your CMSTEDCD Dual Monitor KVM Switch. This device allows two computers to share two monitors (one HDMI, one DisplayPort) and four USB 3.0 peripherals, such as a mouse, keyboard, printer, or USB drive. It supports high resolutions up to 8K@60Hz and 4K@120Hz, ensuring a high-quality visual experience. Please read this manual thoroughly before use to ensure proper installation and functionality.
2. Package Contents
Please verify that all items listed below are included in your package:
- 1 x CMSTEDCD Dual Monitor KVM Switch (Model: VP-SW222)
- 1 x Desktop Control Button (Wired Remote)
- 2 x USB 3.0 A-A Cables (3.3ft each)
- 1 x DC12V Power Adapter
- 1 x User Manual

Image: The KVM switch package contents, showing the main unit, wired remote, two USB 3.0 cables, a DC12V power adapter, and the user manual.
3. Product Overview
The CMSTEDCD Dual Monitor KVM Switch is designed for efficient management of two computers using a single set of peripherals and two displays. Below is an overview of the device's ports and controls.
Front Panel
- USB 3.0 Ports (1-4): Connect your USB peripherals (keyboard, mouse, printer, USB drive).
- Select Button: Press to switch between PC1 and PC2.
- Control Port: Connect the wired desktop control button.
- LED Indicators: Indicate which PC is currently active.
Rear Panel
- ON/OFF Switch: Power on or off the KVM switch.
- DC12V Port: Connect the provided power adapter.
- PC1 IN (DP A, HDMI B, USB 3.0): Connect to Computer 1.
- PC2 IN (DP A, HDMI B, USB 3.0): Connect to Computer 2.
- OUT A (DP, HDMI): Connect to Monitor A.
- OUT B (DP, HDMI): Connect to Monitor B.

Image: Detailed view of the KVM switch, highlighting the input ports for PC1 and PC2 (HDMI, DisplayPort, USB 3.0), output ports for monitors (OUT A, OUT B), USB 3.0 ports for peripherals, power input, and control buttons.
4. Setup Instructions
Follow these steps to correctly set up your KVM switch:
- Power Off Devices: Ensure both computers and monitors are powered off before making any connections.
- Connect Monitors to KVM Output:
- Connect Monitor A to the OUT A (DP and HDMI) ports on the KVM switch.
- Connect Monitor B to the OUT B (DP and HDMI) ports on the KVM switch.
- Connect Computers to KVM Input:
- For Computer 1: Connect its HDMI output to PC1 IN HDMI B, its DisplayPort output to PC1 IN DP A, and its USB 3.0 port to PC1 IN USB 3.0 on the KVM switch using the provided USB 3.0 A-A cable.
- For Computer 2: Connect its HDMI output to PC2 IN HDMI B, its DisplayPort output to PC2 IN DP A, and its USB 3.0 port to PC2 IN USB 3.0 on the KVM switch using the provided USB 3.0 A-A cable.
Important Note: Ensure your computers have both HDMI and DisplayPort outputs for dual monitor functionality. The use of HDMI to DP or HDMI to DVI/VGA conversion cables is not supported and may cause issues. Use high-quality, direct HDMI and DisplayPort cables.
- Connect USB Peripherals: Plug your mouse, keyboard, printer, or other USB 3.0 devices into the USB 3.0 ports (1-4) on the front panel of the KVM switch.
- Connect Desktop Control Button: Plug the wired desktop control button into the Control port on the front panel. This allows for convenient switching.
- Connect Power Adapter: Plug the DC12V power adapter into the DC12V port on the rear panel of the KVM switch, then plug the adapter into a power outlet.
- Power On: Flip the ON/OFF switch on the rear panel to the 'ON' position. Then, power on your monitors and computers.

Image: A visual guide illustrating the complete connection setup for two PCs, two monitors, and USB peripherals with the KVM switch.
Video: An official product video demonstrating the connection process for the 8K HDMI+DisplayPort KVM Switch with two monitors and two computers.
5. Operating Instructions
Once the KVM switch is set up, you can easily switch between connected computers and utilize various display modes.
Switching Between Computers
There are two methods to switch between PC1 and PC2:
- Front Panel Button: Press the Select button on the front of the KVM switch.
- Wired Desktop Control Button: Press the button on the wired remote control. This allows you to place the KVM switch out of sight for a tidier desktop.
Note: Keyboard shortcuts (hotkeys) are not supported by this model.
Display Modes
The KVM switch supports both Extended and Copy (Mirror) display modes, provided your computer's graphics card supports dual monitor output.
- Extended Mode: Each monitor displays a different part of your desktop, extending your workspace.
- Copy (Mirror) Mode: Both monitors display the same content, duplicating your desktop.
You can configure these modes through your operating system's display settings (e.g., Windows Display Settings, macOS System Preferences).

Image: Demonstrations of the KVM switch operating in Extended working mode (two different displays) and Copy working mode (two identical displays).
USB 3.0 Functionality
The four USB 3.0 ports provide high-speed data transmission up to 5Gbps, which is 10 times faster than USB 2.0. This is beneficial for transferring large files or using high-bandwidth USB devices. The switch is also backward compatible with USB 2.0 devices.

Image: A graphic comparing USB 3.0 (5Gbps) and USB 2.0 (480Mbps) transfer speeds, highlighting the faster performance of USB 3.0.
6. Maintenance
To ensure the longevity and optimal performance of your KVM switch, consider the following maintenance tips:
- Keep the device in a cool, dry place away from direct sunlight and excessive heat.
- Avoid exposing the switch to moisture or liquids.
- Clean the exterior with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners.
- Ensure all cables are securely connected to prevent signal loss or intermittent issues.
- Always use the provided DC12V power adapter to ensure stable power supply.
7. Troubleshooting
If you encounter any issues with your KVM switch, please refer to the following common troubleshooting steps:
- USB not working:
- Confirm that the USB 3.0 cable is properly connected between the computer and the KVM switch.
- Verify that the computer's USB port is functioning correctly.
- Ensure that the latest USB driver is installed on the computer.
- Display has no image:
- Confirm that the KVM switch's video input ports (PC1 IN, PC2 IN) match the corresponding output display (OUT A, OUT B). For example, if you connect PC1 to OUT A, ensure the cables are correctly routed.
- Use high-quality 3.3ft video cables. Conversion cables (e.g., HDMI to DP, DP to HDMI) are not supported and may cause display issues.
- If an adapter is required for your setup, please use an active adapter.
- Check that the KVM switch is powered on and the correct input is selected.
- Flickering, Screen Pause, or Black Screen:
- Ensure all video cables are securely connected and are of high quality, supporting the desired resolution and refresh rate (e.g., 8K@60Hz, 4K@120Hz).
- Verify that the power adapter is correctly connected and providing stable power to the KVM switch. The external power design helps ensure a stable working environment for USB devices and video signals.
- Update your graphics card drivers on both connected computers.
If these steps do not resolve the issue, please contact CMSTEDCD customer support for further assistance.
8. Specifications
| Feature | Specification |
|---|---|
| Model Number | JHS-UK-US-SW222-0121 |
| Brand | CMSTEDCD |
| Supported Resolutions | Up to 8K@60Hz, 4K@120Hz (backward compatible with 4K@60Hz, 1080P, 720P) |
| Video Inputs | 2 x HDMI 2.1, 2 x DisplayPort 1.4 |
| Video Outputs | 1 x HDMI 2.1, 1 x DisplayPort 1.4 |
| USB Input (for PCs) | 2 x USB 3.0 (Type-B) |
| USB Output (for Peripherals) | 4 x USB 3.0 (Type-A) |
| USB Transfer Speed | Up to 5Gbps (USB 3.0) |
| Switching Methods | Front panel button, Wired remote control |
| Power Supply | DC 12V (adapter included) |
| Material | Metal |
| Dimensions (L x W x H) | 5.9 x 2.53 x 1.38 inches |
| Item Weight | 1.21 pounds |
| Compatible Devices | Computers, Laptops, TV Boxes, PS4, PS4 Pro, PS3, Xbox One, Nintendo Switch |
9. Warranty and Support
CMSTEDCD is committed to providing high-quality products and excellent customer service. Your KVM switch includes a 12-month replacement warranty from the date of purchase. If you encounter any issues during use, please contact our professional technical support team for assistance. We are dedicated to helping you resolve any difficulties.
For support, please refer to the contact information provided in your product packaging or visit the official CMSTEDCD store on Amazon.



