2. Q: What is MST Mode?

A: The traditional dual monitor KVM switch needs to connect two cables to each input device for the normal use of the dual monitor function. But our USB-C dual monitor KVM Switch, HCK402-P supports Multi-Stream Transport(MST) mode allowing dual HDMI displays from a single USB-C source.

If your Windows OS PC with USB-C port and is DisplayPort 1.2 compliant, you can adopt two console monitors from it by connecting one single USB-C cable according to the pictures below, the display mode will enable MST mode automatically.

Tips: Up to now, devices running Apple’s Mac OS, Ubuntu, and other operating systems do not support MST mode. This means that those devices need to be connected to the KVM by using two USB-C cables.

3. Q: How many display modes are available for HCK402-P?

A: The HCK402-P KVM offers 2 display modes. You can choose to implement 2-screen extended display or duplicate display or display different PCs on 2 monitors.

Display Mode 1: Display the same PC:

Display Mode 2: The Matrix mode:

You can match any display and any input view at will in this mode. Here are 3 examples.

4. Q: Can the USB 3.0 port on the front panel charge my computer? If not, can the KVM charge my computer?

A: The USB 3.0 port on the front panel supports charging functionality with a maximum output power of 7.5W. So, it is designed to charge only mobile phones and tablets and is not suitable for charging laptops or computers.

However, connect the laptops to the rear two Type-C video ports of the KVM and they will be charged via the PD protocol. Please be aware that only by connecting the device to the port marked "A" of the PC1 port and the PC2 port can it be charged. When the laptop is connected to both the KVM and the original charger, the charger will give priority to charging it. Additionally, the USB-C port on the laptop needs to support the charging protocol to be able to charge.

5. Q: What is Lock L/R Audio and USB 3.0 Focus Function?

A: The HCK402-P supports locking L/R audio and USB 3.0 focus. After the lock is turned on, the current audio or USB focus can be maintained and only the screen can be switched when switching; the audio focus lock and USB 3.0 focus lock are independent of each other, you can lock the audio or lock the USB separately. Only need to press the front panel keys to operate the audio or USB focus lock.

Tips: HCK402-P only supports Lock L/R Audio and USB 3.0 Focus and does not support switch audio focus and USB focus.

6. Q: How should I connect my keyboard and mouse?

A: Inside the package, you will find two KVM cables, two HDMI cables, and four USB-C cables.

For PC1 port and PC2 port, using the USB-C cables to connect your computer to the KVM not only transmits audio and video signals but also facilitates the transfer of USB data, enabling proper control of your computer using the keyboard and mouse.

For PC3 port and PC4 pot, you need to connect your computers to the KVM by using two KVM cables and two HDMI cables. Each KVM cable consists of an HDMI cable and a USB cable. The USB-A to USB-B cable is connected to transfer USB data between the computer and the KVM, which enables the keyboard and mouse to control computers normally. Simply connect the USB A end of the cables to their respective computers and insert the USB B end into the KVM. Then, you can connect your mouse and keyboard to the dedicated keyboard and mouse ports on the KVM.

7. Q: Does HCK402-P support Bluetooth keyboard and mouse?

A: This model does not support Bluetooth keyboard and mouse, and all our KVMs do not support Bluetooth keyboard and mouse, but they all support 2.4GHz wireless keyboard and mouse and are compatible with a wide range of mechanical keyboards and mice, wireless keyboards, and mice, and multimedia keyboards and mice.

8. Q: Can I use the keyboard and mouse on multiple computers simultaneously?

A: Our KVMs are used to share a set of keyboard and mouse between multiple computers, and the keyboard and mouse can not be used between the multiple computers at the same time, but the sharing of keyboard and mouse is achieved by switching input devices. In display mode 2 (2 monitors display the different PCs), you can double-click [Right-Alt] to switch the focus of the keyboard and mouse. This way, you can control both computers without the need to physically disconnect and reconnect the peripherals each time you want to switch between them.

9. Q: What keyboards are compatible with your KVM?

A: Our KVM is compatible with most keyboards. Considering our KVM's keyboard and mouse dedicated ports are equipped with special hotkey chips, there are some typical reasons that may cause compatibility issues:

① Some keyboard models use proprietary protocols that are temporarily incompatible with the dedicated ports on our KVM.

② Certain keyboard models, when plugged into the dedicated ports on the KVM, consume excessive bandwidth, leading to compatibility issues such as keyboard lag or key sticking.

To address these compatibility issues, we recommend customers connect keyboards that encounter problems when plugged into the keyboard and mouse dedicated ports on the KVM to the USB 2.0/USB 3.0 ports on the KVM. The USB 2.0/USB 3.0 ports do not have the built-in special chips found in the dedicated keyboard and mouse ports. Plugging your keyboard into the USB 2.0/USB 3.0 ports effectively treats it as if it were directly connected to the computer.

Due to the wide variety of keyboard models available in the market, our R&D department cannot conduct compatibility tests on every keyboard. Below are some keyboard models that have been reported as incompatible by customers: Dell KB813, Cherry KC 1000SC(and similar keyboards with a card slot), Logitech MX series (some of which cannot manually switch between Windows and macOS modes), Roccat, and certain Microsoft keyboard models.

You can also refer to keyboard and mouse models that have been tested and approved by our R&D department:

10. Q: Does HCK402-P have a LAN port?

A: Yes, it does. HCK402-P has a built-in USB Ethernet Adapter, which adds a standard RJ45 port to all the PCs that are connected to the KVM and allows you to connect your computer to a router or network switch for a wired network connection without many network cables. Full 100Mbps Ethernet for fast, stable data transfer, more reliable than most wireless connections. Only one network cable can provide a wired network connection for your 4 PCs at the same time.

The LAN port on HCK402-P is solely designed for connecting network cables to enable all connected PCs to access the network. It does not support the use of control software to manage the KVM.

11. Q: What is HPD Signal Retention Mode?

A: When HPD signal retention mode is enabled, the KVM switch keeps the HPD signal of inactive input channels in a high-level state. This way, even if the user switches to a new input channel, the HPD signal of the previous channel remains in a high-level state, maintaining a stable display output.

We have set up a switch mode for retaining the HPD signal, which can be enabled or disabled according to your needs. Use the keyboard hotkey to enable or disable the HPD retention mode. HPD retention mode is enabled by default. You can use the keyboard hotkey command [Right-Ctrl] + [Right-Ctrl] + [F4] to switch states. The buzzer beeps once indicating the mode is enabled. The buzzer beeps twice indicating the mode is disabled.

12. Q: How can I operate the front panel?

A: When you use the front panel button or IR remote to control the KVM, the LCD display will inquiry your target action, then execute the command according to your operation. The LCD interface in the figure above is the main interface.

13. Q: What is the Mouse Wheel Switching?

14. Q: What is Auto Scan Mode and how to use it?

A: The Auto Scan feature can automatically switch the display at regular intervals between the input devices that are powered on and connected to the KVM. As a result, any input devices connected to each port can be monitored without user intervention. Auto scan mode is off by default. You can turn on the auto scan mode through the front panel button and keyboard hotkey.

Keyboard hotkey:

① Turn on auto scan mode: [Right-Ctrl] → [Right-Ctrl] → [Space]

(Tips: The default auto scan time interval is 5 seconds. You can change the time interval by setting it on the LCD menu or following the step presented below.)

② You can change the time interval by setting it on the front panel or following the steps presented below: [Right-Ctrl] → [Right-Ctrl] → [+]/[-]

(This hotkey command can only work while the auto scan mode is activated. Press [Right-Ctrl] twice and keep pressing the [+]/[-] key to adjust the time interval continuously. Increase or decrease 1 second at one time.)

③ Press [Esc] to exit auto scan mode.

15. Q: How to switch the input source?

A: There are four methods to switch the input source: the front panel button, keyboard hotkey, mouse wheel, and infrared remote control.

The front panel button:

[1-4] button: Press directly to switch among 4 PCs. After switching, 2 displays will display the selected PC at the same time, i.e. display mode 1.

[A-B] button: Display selection button:

Directly press the button, then press the [1~4] buttons according to the prompt of the LCD screen to make the selected monitor display the selected PC. i.e. the Matrix mode.

(For example, if you press the combo like "A-1-B", "B-2-A", the image of channel "Input B" of PC 1 will be displayed on Display A and the image of channel "Input A" of PC 2 will be displayed on the Display B right away. i.e. the crisscross mode of the Matrix mode. Other modes can be deduced by analogy. The operation on the IR remote control is the same.)

Keyboard hotkey:

Select previous input port: [Right-Ctrl]→[Right-Ctrl]→[PgUp]

Select next input port: [Right-Ctrl]→[Right-Ctrl]→[PgDn]

Select port by port number(i.e. the display mode 1): [Right-Ctrl]→[Right-Ctrl]→[1]~[4]

Switch PCs on different monitors separately(i.e. the Matrix mode):

Monitor A：[Right-Ctrl] → [Right-Ctrl] → [←] → [1]~[8]

Monitor B：[Right-Ctrl] → [Right-Ctrl] → [→] → [1]~[8]

Switch focus in display mode 2: [Right-Alt]→[Right-Alt]

Tips:

① "←" stands for Display A, "→" stands for Display B.

② 1~8 stands for all 8 input channels. It means 1 stands for input A of PC 1, 2 stands for input B of PC 1, 3 stands for input A of PC 2, ..., 8 stands for input B of PC 4, and so on. For example, if you press the hotkey command "Right-Ctrl + Right-Ctrl + ← + 7" and "Right-Ctrl +Right-Ctrl + → + 7", the image of channel ‘Input A’ of PC 4 will be displayed on both Display A and Display B right away. i.e. the splitter mode of the Matrix mode.

Mouse wheel:

The mouse wheel switching method can quickly switch input sources by mouse operation, double-click the mouse wheel to switch to the next input port.

Infrared remote control:

① Press the key [M] or [P] to select the desired monitor, according to the prompt of the LCD screen, press the [1~4] button to select the desired PC, then press [M] or [P] to make the selected monitor display the selected PC(i.e. the Matrix mode)

② Directly press the [1~4] key to make the 2 monitors display the selected PC. (i.e. the display mode 1)

16. Q: What are the differences between the HCK402-P and the HKS0402A2U?

17. Q: Does the HCK402-P feature EDID emulation?

A: Yes, it supports EDID emulators in each input port to keep PCs always having correct display information. (Note: this function is supported only in display mode 1)

18. Q: Does HCK402-P support operation at a 4K60Hz resolution?

A: Yes, the HCK402-P supports 4K resolutions up to 3840x2160 (4K) @60Hz, 3440x1440@100Hz, 2560x1440@120Hz, 2560x1440@144Hz(DSC), and is also backward compatible. However, this model do not support 5120x1440p.

19. Q: I have an Apple MacBook Pro 16" 2021, a Latitude 5420, TUF Gaming X570-Plus, AMD Radeon RX 5700 XT, Philips BDM3270QP2/27, Samsung LC32HG70QQNXZA. I need to switch between these computers frequently for work and would like the monitors, keyboard, mouse, and speakers to all switch simultaneously. Which product do I need?

A: Based on your situation, we have HCK402-P KVM which could meet your demands.

It is important to note that two computers will require one or two USB-C ports when connecting to the PC1 port and PC2 port, two computers will require 2 HDMI ports and 1 USB-A port when connecting to the PC3 port and the PC4 port, and each monitor will require 1 HDMI port when connecting HCK0402A1U. If your device lacks sufficient ports, you may need to purchase additional conversion cables and docking stations. Our package includes all the necessary cables required for the computer end. Any additional cables or conversion cables will need to be purchased separately.

To assist you in selecting the appropriate cables for specific devices, you can check the reference list below:

HCK402-P:

① Apple MacBook Pro 16" 2021: two USB-C cables

② Dell Latitude 5420: one USB-C cable

③ TUF Gaming X570-Plus: one HDMI cable; one DP to HDMI conversion cable; one USB-A to USB-B cable

④ AMD Radeon RX 5700 XT: one HDMI cable; one DP to HDMI conversion cable; one USB-A to USB-B cable

⑤ Philips BDM3270QP2/27: one HDMI cable

⑥ Samsung LC32HG70QQNXZA: one HDMI cable

Regarding whether the converter will affect the resolution, generally speaking, it should not impact the resolution. However, if there is an incompatibility issue between the converter and our device, it may cause video signal transmission issues such as flickering, black screen, or reduced resolution. We cannot guarantee it completely.

If you have other concerns, please feel free to reach out to our customer support center via the contact information located in the bottom right popup widget of our official website for assistance. We are here to help.

20. Q: What is the recommended operating temperature for your product?

21. Q: Is it safe to use your KVM?

A: Yes, it is. Our KVM falls under the category of physical KVMs. It is designed specifically for switching and transmission of audio, video, and USB data. One remarkable aspect of our KVM system is that it functions independently of internet connectivity; it simply requires a power connection to operate.

Our KVM employs a direct data transmission mode, ensuring that no alterations are made to the transferred data during the process. Furthermore, it is important to note that the KVM does not possess any storage functionality, alleviating any concerns about potential data leaks. Essentially, our KVM serves as a dedicated device that not only ensures an absence of data exchange between connected hosts but also facilitates the shared use of a single set of keyboard, mouse, and display between two host systems, all achieved through a physically isolated switching mechanism.

22. Q: Why should I choose your products?

• We specialize in a variety of KVMs, including single-monitor KVMs, dual-monitor KVMs, and triple-monitor KVMs.
• Our multi-monitor KVMs offer two display modes: dual-screen mode (where both monitors simultaneously display the same input source) and extended screen mode (where both monitors simultaneously display two different input sources).
• This KVM is the newest addition to our lineup, and features MST functionality, enabling multiple screen outputs through a single cable and optimizing port performance. When faced with limited video ports on your computer, this KVM with MST support resolves connectivity challenges efficiently.
• Most of our products currently support high-resolution displays at 4K60Hz.
• Our products come equipped with an independent audio interface and multiple additional USB2.0/USB 3.0 ports.
• Convenient operation with multiple switching options (front-panel buttons/remote control/keyboard hotkeys).
• Our KVMs are designed with keyboard and mouse pass-through functionality, ensuring compatibility with a wide range of keyboard and mouse devices.
• Join our VIP membership program to extend the warranty period and enjoy significant discounts for trade-ins.
• Enjoy peace of mind with our reliable after-sales service.