NTI 8-port High Density USB, DVI, KVM Switch


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Model: 8 Port

The NTI UNIMUX-DVI-4HD is a 8-port High Density DVI USB KVM Switch. The UNIMUX High Density DVI USB KVM switch allows you to control up to 8 single link DVI USB computers with one DVI-D monitor, USB keyboard and USB mouse.


  • The High Density Switch saves rack space. The 8 port switch is 1RU in height.
  • Rackmount kit included.
  • Incorporates NTI's patented true autoboot USB switching; all attached USB PCs, SUNs and MACs can be booted simultaneously.
  • Supports video resolutions up to 1920x1200.
  • Supports digital DVI for crisp and clear video quality on flat panel display.
  • Control the switch through the front panel interface, keyboard commands or RS232.
  • Compliant with USB 2.0 (low/full speed) standards.
  • High quality, rugged steel construction with durable powder coat finish.
  • USB SUN start-up keys are supported.
  • Supports MAC soft (keyboard) power-on.
  • Cabling runs are simplified with NTI's high density KVM switch cables.

Control Methods:

Front Panel Interface

  • LEDs indicate currently selected port and mode of operation.
  • Hold in any button for more than five seconds to go into Scan, Broadcast or Command Mode.
    • In Normal Operating Mode, the user can directly operate the selected computer with transparent presence of the NTI switch.
    • Scan Mode automatically and sequentially displays the video from each powered on computer for 2-255 seconds.
    • Broadcast Mode allows the user's keystrokes to be sent to both powered on computers. (Broadcast Mode is not available for MACs.)
    • Command Mode allows the user to give instructions to the switch through his/her keyboard. Keystrokes are not passed to the computer.


  • Scan, Broadcast or Command Modes are available from the keyboard using hot keys.
  • Use the keyboard to command the switch box to select ports or configure the Scan delay.
  • Type +<'> (or +<'>) to go into Command Mode.
  • Press to leave Command Mode and return to Normal or Scan Mode.

RS232 Control

  • Female RJ45 connector.
  • Baud rate 2400, 9600, 19200, or 38400.
  • Use DIP switches to set the baud rate and address up to 16 units, all of which can be daisy chained and controlled by one serial port.
  • 5-foot CAT5e patch cable, RJ45F-DB9F and RJ45F-DB25F adapters included.


  • RS - causes switch to reset so that IN1 connects to OUT1, IN2 connects to OUT2.
  • CS - causes one INx/OUTx connection to occur.
  • CA - causes all inputs to connect to specified output.
  • RO - reads what input is connected to specified output.
  • RU - reads size of matrix, reports number of inputs and number of outputs on specified switch.

NTI UNIMUX-DVI-xHD Application Diagram
 NTI UNIMUX-DVI-xHD Application Diagram

 NTI UNIMUX-DVI-8HD Specifications:

Width 19 in. (48.2 cm.)
Height 1.75 in. (4.5 cm.)
Depth 6.0  in. (15.2 cm.)
Hosts Female HDMI-A connectors.
Supports USB-enabled computers (PC, SUN, and MAC) with DVI video.
Multiplatform support: Windows 2000/XP/Vista/7, Windows Server 2000/2003/2008, Solaris, Linux, FreeBSD and MAC OS 9/10.
Resolution 1920x1200
Connector One female DVI-I connector
Single link DVI-D signal
Compatibility DDC2B compatible
Connectors Two female USB Type A connectors.
Provides support for full-speed (12 Mbps) or low-speed (1.5 Mbps) USB keyboard and mouse.
Compatibiltiy Compatible with most USB keyboards and mice, including USB IntelliMouse.
Keyboard and mouse are hot-pluggable.
Supports SUN and MAC extra keys.
Power 110 or 220 VAC at 50 or 60 Hz via IEC connector..
Consumption 10W
Cables Interface cables between your computers and the switch are required for proper operation. Use USB-DHEXT-xx-MM to connect computers to the switch.
Operating Temperature 32° F to 100° F
Storage Temperature -20° F to 140° F
Operating and Storage Relative Humidity 17 to 90% non-condensing RH
Regulatory Approvals CE, ROHS
Question: Good morning. Do you have mean time between failure data (MTBF) for the NTI UNIMUX-DVI-8HD? Thank you!
Answer: Thank you for your inquiry. According to NTI, the MTBF for the UNIMUX-DVI-8HD is 217,508 hrs.

Question: Does this switch support cascading (one switch that controls multiple switches that in turn have up to 8 computers each)?
Answer: Thank you for your inquiry,

The NTI Unimux can be cascaded multiple levels. Please refer to page 18 of the operations manual for a diagram and detailed description: https://www.networktechinc.com/pdf/man005.pdf

Please feel free to contact your KVM Switches Online sales reprasentative directly at info@kvm-switches-online.com, via our online Chat, or at 1-877-586-6654, if you would like any help choosing the right solution.