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Welcome  KVM solutions  KVM switches  DL-MUX

DL-MUX - KVM switch for 4K UltraHD resolution in mission-critical applications

With DL-MUX KVM switches, you can operate 2 or 4 computers over 1 user console.

The DL-MUX switches the following signals:

  • Keyboard/mouse
  • Dual-link DVI and VGA
  • Audio
  • USB 2.0

The device is available in variants transmitting 1, 2, 3, or 4 video channels.

With its network connection, the web interface and DLM monitoring, the DL-MUX4 provides numerous features for mission-critical applications.

Front view DL-MUX4
Rear view DL-MUX4
Front view DL-MUX4-MC3
Rear view DL-MUX4-MC2
Rear view DL-MUX4-MC4

Product details

DLM monitoring function

The integrated DLM-Monitoring auto-transmits device status messages to syslog servers or sends them as SNMP. Manual monitoring is carried out over the web interface.

The DL-MUX monitoring function queries the following values:

  • Power supplies (on/off)
  • Temperature limit (above/below average)
  • Connection cable (interrupted/uninterrupted)
  • Computer (on/off)
  • DVI video input (available/not available)
  • Access settings (set preferences)

The DLM-Monitoring enables proactive monitoring instead of reactive maintenance.

Get detailed information about Monitoring & SNMP here

Easier access with SNMP tool Zabbix

For customers who are not yet using extensive SNMP tools, G&D offer a simple way to use the functions included in the devices. Templates for the open source tool Zabbix are provided here. The program lets users monitor SNMP-capable devices in a network and, among other things, issues warning notifications about critical device states, which have been received via SNMP trap.

Download the free G&D Zabbix templates here

Tempest certification

The DL-MUX4 MC2 is qualified for the Tempest certification (Zone 1 / SDIP 27 Level B (ER))


  • DVI resolution per channel up to:
    • 2560 x 1600 @ 60Hz or 2k x 2k @ 60Hz
    • 4096 × 2160 @ 30 Hz (UHD-4K)
  • when using two DVI video channels:
    • 3840 × 2160 @ 60 Hz (Ultra HD)
    • 4096 × 2160 @ 60 Hz (UHD-4K)
  • VGA resolution up to 1920 × 1440 @ 75Hz or 2k × 2k @ 60Hz per channel
  • Video bandwidth:
    • DVI dual-link: 330 MPixel/s
    • VGA up to 400 MHz
  • Mixed DVI/VGA operation on input and output side
  • E-DDC support
  • Single- and multi-channel variants
  • Supports Barco PVS graphics cards
  • Digital colour mode 24 bits or analog
  • Backward-compatible to single-link

Network / Communication / Safety

  • Two network ports
  • Configuration over web interface
  • Monitoring over SNMP and web interface
  • Reports device conditions (temperature, voltage, computer status etc.)
  • Identification LED for locating the device in complex installations
  • Redundant power supply
  • Logbook: electronic notes regarding the device; can be exported as .csv file
  • Also avaiable as variant with 12V power supply


  • Supports PS/2 and USB keyboard/mouse
  • Switches audio and transparent USB 2.0 signals


  • Accesses only the standard computer interfaces
  • Dual network connectivity
  • Configuration over web interface
  • Redundant power supply
  • Requires no software installation
  • Available as desktop and rack mount variant
  • Shipped in an aluminium casing for best interference resistance
  • Hot-pluggable

System upgrade

  • Updates through the Config Panel

Video signals

  • available with Dual-Link DVI-I interfaces which also allow transmission of VGA signals

Computer quantity

  • DL-MUX2: connect two computers
  • DL-MUX4: connect up to four computers


  • The device is shipped as Desktop variant with a mounting set for rackmount solutions

Video channels

  • Single-Channel, MC2, MC3, MC4


With the IP-Control-API, it is possible to control the switch with an own user interface. So you can use your tailored interface to operate the switch.

Connect the computer to the back side of the devices. Standard cables link keyboard, video, mouse, audio, and USB interfaces to the switch.

  • Cable length of PS/2 cable sets: 2 m, 5 m
  • Cable length of USB cable sets: 2 m, 5 m

For installing the user console simply connect keyboard, monitor, mouse, speakers, and USB devices to the intended interfaces.

Feel free to download the DL-MUX manual to find out more details about the start-up.

List of Item Numbers


Item No.Product


Item No.Description


Abbreviation Description
MC2 Multichannel variant with two video inputs per channel
MC3 Multichannel variant with three video inputs per channel
MC4 Multichannel variant with four video inputs per channel


Resolutions up to 4K

Resolutions up to 4K

DisplayPort video signals

DisplayPort™ video signals

DVI-DualLink video signals

DVI-DualLink video signals

DVI-SingleLink video signals

DVI-SingleLink video signals

Analogue VGA video signals

Analogue VGA video signals

CrossDisplay-Switching feature

CrossDisplay-Switching feature

USB 2.0 transmission

USB 2.0 transmission

Transmission of audio signals

Transmission of audio signals

Integrated OnScreenDisplay

Integrated OnScreenDisplay

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