AdderView Dual-head secure 4-port switch


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ADDERView AVS-4214
Single-head secure 4-port switch

ADDERView AVS-4214 Diagram

ADDERView AVS-4214 Overview

ADDERView Secure switches enable a KVM plus audio desktop to be shared between different classification level computers. Designed for superior usability, the switches feature configurable LED buttons and a real-time status display.

The ADDERView Secure range is designed to prevent sensitive data leakage and data storage in the device. Using features such as uni-directional data paths, anti-tamper labels and nonreprogrammable firmware, the secure switches actively combat a range of potential threats.

Adder AVS-4214 Ports

AVS-4214 Features

  • Uni-directional keyboard, video, mouse and audio data paths
    • Uni-directional optical diodes ensure data paths travel in only one direction, thus preventing data leakage through shared peripherals. A uni-directional structure also protects against timing analysis or forced malfunction attacks and prevents computers influencing the operation of any common circuitry.
    • Channel identification
      • Reduce the chances of operator error by displaying a name for each channel and its security classification on the E-paper display. The color of the channel LED may also be configured to reflect the security classification.
    • No shared RAM between channels
      • The keyboard and mouse processor is powered down and reset at each switchover to thwart shared RAM leakages. All data buffers are actively cleared once they have been used.
    • Automatic switching (configuration option)
      • Switch channels (KVM plus audio) simply by moving the mouse across the screen border, whilst pressing the Ctrl key.
    • Hardware anti-tampering
      • Holographic anti-tampering labels protect the product's enclosure, providing a clear visual indication if it has been opened or compromised.
    • Non-reprogrammable firmware
      • There is no access to the product's firmware or memory through any port. Firmware is permanently stored in non-reprogrammable Read Only Memory (ROM) to prevent modification. Firmware integrity is verified through a self-test procedure during power up. Detection of a critical failure disables the device and provides a clear visual indication to the user.
    • Restricted USB function
      • The USB ports will only accept HID (Human Interface Devices), such as keyboards and mice. Other devices, such as USB storage drives, are actively prohibited.
    • Video Performance
      • Up to UHD 4K video resolution at 60 fps for graphics intensive applications requiring very high quality.
    • Audio hold
      • Assign the audio port to a specific computer while switching the KVM to other computers. Useful when a user needs to listen to audio from one computer, whilst working on another.



ADDERView AVS-4214 Technical Specifications


  • CE, FCC class A, TUV US & Canada
  • NIAP PP 4.0 Certified for Peripheral Sharing Devices (PSD)

Video Resolutions

  • The system supports UHD 4K resolutions to a maximum of 3840 x 2160 @ 60Hz.

Software Compatibility

  • Windows, Linux, Mac host computer OS's USB HID, including touchscreens compliant with Microsoft Digitizer.

Console Connections

  • Dual port for DP/HDMI
  • USB type A
  • Audio 3.5mm
  • RJ12 for remote control

Computer Connections

  • Dual-head (AVS-4214 only)
  • 8x Dual ports for DP/HDMI
  • 8x USB type B
  • 8x Audio 3.5mm

Front Panel

  • Audio hold button and status LED
  • 4x Channel selection button and status LED
  • 212x104 E-Paper Display

Physical Design

  • Robust metal construction
  • 13.54"/344mm(W), 2.4"/61mm(H), 6.5"/165mm(D)
  • Weight: 2.0kg/4.41lbs

Power Supply

  • 100 - 240V AC, 47/63Hz
  • 12V DC 18W output from power supply unit


  • Operating temperature: 0°C to 40°C/ 32°F to 104°F
  • Storage temperature: -20° to 60°C/ -4° to 140°F
  • Humidity: 0-80% RH, non-condensing