Adderview Secure KVM switch for sharing dual head 4K video, USB keyboard and mouse, plus analog audio between four computers spanning multiple security classification levels

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.

NIAP PP 4.0 Compliant Design
Assembled in the USA
TAA Compliant


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 ports
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)
Free-flow KVM and audio control between ports without the need to press any buttons. Simply move the mouse between windows.

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.

Approvals / Compliance

CE, FCC class A, TUV US & Canada
NIAP PP 4.0 Compliant Design 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, USB type B, Audio 3.5mm

Front Panel

Audio hold button and status LED
4x Channel selection button and status LED
212x104 E-paper for status display

Physical Design

Robust metal construction

Dual-head (AVS-4214 only)

13.54”/344mm(w), 2.4”/61mm(h), 6.5”/165mm(d)

Power Supply

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


Operating temp: 32ºF to 104ºF (0ºC to 40ºC)
Storage temp: -4ºF to 140ºF (-20ºC to 60ºC)
Humidity: 0-80% RH, non-condensing

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AdderView Secure 4-port DP/HDMI 4K/60 Dual Head KVM Switch AdderView Secure  4-port DP/HDMI 4K/60 Dual Head KVM Switch
$3,095.00 In stock