HKS0403A1U-FAQ
Contents
Q1. Is this the right KVM for 4 laptops and 3 monitors? ...................................................... 2
Q2. Why does the video cable need to be connected to 3 instead of 1? ............................2
Q3. Can the KVM support 5120x1440？..............................................................................3
Q4. Compared with Dual Monitor KVM Switch, what kind of upgrades have been made to
the latest Triple Monitor KVM Switch product? ................................................................. 3
Q5. What should I do if my input source does not have so many HDMI ports? ................. 3
Q6. What advantages of USB3.0 over USB2.0？................................................................4
Q7. When connected to a triple monitor KVM, why is there noise and what can be done
to resolve it? ..........................................................................................................................4
Q8. How to set the KVM? ..................................................................................................... 4
Q9. If I have correctly connected all the cables but still encounter issues, what can I
troubleshoot? ........................................................................................................................ 4
Keywords
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HKS0403A1U / 4 in 3 out / 4 Port Triple Monitor KVM Switch
Q1. Is this the right KVM for 4 laptops and 3 monitors?
A1.
This Triple Monitor KVM switch can achieve the following:
Display Mode 1：Triple monitors can be used to duplicate the display of a computer
simultaneously.
Display Mode 1：Each monitor can display information from the same computer in
extended mode.
Display Mode 2：Display different PCs on 3 monitors.
Q2. Why does the video cable need to be connected to 3 instead of 1?
A2.
From a signal transmission perspective, connecting 3 video cables to the KVM is
necessary. Additionally, the three output ports of the KVM need to be connected to
the monitors. This setup allows for screen expansion. If only 2 cables are connected,
only 2 monitors will display content. Similarly, if only 1 cable is connected, only 1
monitor will display content.
Connection Diagram:
Q3. Can the KVM support 5120x1440？
A3.
You can refer to the detailed information in the image provided below. Currently, our
KVM does not support a resolution of 5120x1440. It supports resolutions up to
3840x2160 at 60Hz and is backward compatible.
Compare Products:
Q4. Compared with Dual Monitor KVM Switch, what kind of upgrades
have been made to the latest Triple Monitor KVM Switch product?
A4.
Support 3 USB 3.0 (including 1 USB C), 2 of which are able to charge. USB 3.0
sharing for printers, jump drives, USB headsets, and webcams for teleconferencing.
Newly added an integrated microphone and L/R audio output.
Support locking L/R audio and USB 3.0 devices to a fixed PC.
Newly added a LAN port to ensure that all 4 computers are connected to the network
through RJ45.
One-touch locking KVM to protect private information, with audio output pause and
LCD screen brightness reduction.
Q5. What should I do if my input source does not have so many HDMI
ports?
A5.
If you don't have enough HDMI ports, it is recommended that you use a reliable
converter. Please check if there are other video ports on your input device, such as
USB-C, DisplayPort, VGA, or DVI ports.
Avoid daisy-chaining multiple adapters as this may cause signal attenuation and
degrade performance.
It's important to note that the quality of the video signal may be impacted by the
adapter's performance.
Q6. What advantages of USB3.0 over USB2.0？
A6.
Compared to USB2.0, USB3.0 has several advantages: it can achieve up to 10 times
faster transfer speeds, with a maximum speed of 5Gbps; it supports simultaneous
data and power transmission, allowing for charging and data transfer at the same
time; and it allows for connecting multiple devices simultaneously without worrying
about bandwidth limitations.
Q7. When connected to a triple monitor KVM, why is there noise and
what can be done to resolve it?
A7.
The noise may be caused by electromagnetic interference. Since the audio signal of
this product is transmitted through the HDMI cable, adding another connected device
will increase interference, as the HDMI link provides some power. Typically, HDMI
power is small and we did not encounter this issue during testing. It may be related to
the product's power chip or your usage environment. It is recommended to use
external speakers connected to the USB interface. If you can not solve the problem,
you can contact us through the chat window at the lower right or by submitting
feedback. Our dedicated team of professionals is ready to help and provide after-
sales support.
Q8. How to set the KVM?
A8.
To fully utilize the features of this KVM, each PC requires 1 USB-A port and 3 HDMI
ports. If your device does not have sufficient ports, additional adapter cables and
docking stations may be needed.
This KVM supports the connection of up to 4 computers. Each computer has three
input ports (InputA, InputB, InputC). You can connect each computer to the
corresponding monitor as per your requirements (e.g. for PC2 to output on Output1
and Output2, connect PC2's inputs to InputA and InputB respectively).
The correspondence between the ports is as follows: InputA - OutputA, InputB -
OutputB, InputC - OutputC.
Q9. If I have correctly connected all the cables but still encounter issues,
what can I troubleshoot?
A9.
Check for a bad cable: Swap the problematic cable with another available cable to
see if the issue persists.
Non-standard resolution: Ensure that the resolution settings for the problematic
monitor match those of the working monitor. Adjust the resolution if necessary.
Verify bad ports: Test the ports on both the KVM and computer sides. If possible,
try connecting the computer to another machine or plug it into a different open slot on
the KVM to determine if the port is causing the problem.
Docking station issues: This is a difficult problem to troubleshoot since most people
have only one docking station available. However, if you suspect the docking station
is causing the issue, try connecting the computer directly to the KVM without the
docking station.
Power cycle the KVM: Turn off the KVM and unplug its power source. Wait for a few
seconds, then plug it back in and power it on. This can help reset communication and
resolve any signal or communication problems.
DOA (Dead on Arrival): It is possible that there is a faulty power adapter or a faulty
KVM board. If you suspect this to be the case, consider contacting the manufacturer
or supplier for further assistance or to request a replacement.
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