K524E Secure KVM Switch: 4-Port, DisplayPort Video, Dual-Display

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System Diagram

**This product has reached End-Of-Life status. See link to Its successor product: SECURE 4 PORT KVM SWITCHES**

The K524E is a secure, 4-port, Display-Port, dual-head KVM Switch with a special secured USB port for smartcard/biometric reader.

It allows users to share peripherals - keyboard, video, mouse and audio - between four computers from different security classifications while isolating all coupled hosts from each other and from the peripherals that are being shared through it, keeping the data of each computer completely separate. 

Each computer may connect up to two independent displays and operate in a dual-display mode.

The K524E is designed to provide the highest possible computer & peripheral isolation as demanded by government agencies, military, financial institutions and similar security sensitive customers. It is built to comply with EAL4+ security requirements and with the latest requirements of the National Information Assurance Partnership (NIAP) Protection Profile PSS Ver 3.0 for peripheral sharing switch devices.

With the K524E users can save valuable desk area in space-restricted environments and increase productivity by interacting with up to four dual-head computers using two displays and a single set of keyboard, mouse and audio.

How does it work?

  • Connect up to four computers and two displays to the KVM.
  • Each computer can connect two displays to the KVM's rear panel.
  • Connect a smartcard/biometric reader to the KVM's DPP secure port to support user authentication across multiple isolated computers. 
  • Computers and peripherals are fully isolated from each other.
  • User can interact with multiple computers using a single set of keyboard and mouse.
  • Switch between the selected sources by channel-select push buttons and/or keyboard shortcuts.
  • Audio is switched automatically once control is switched to another source.
  • Interact with four isolated computers using two displays and a single set of keyboard, mouse and audio peripherals.
  • Work freely without compromising security:
    Display and control classified and non-classified computers without compromising security.
  • Protect against leakage and malicious attacks through USB, keyboard, mouse, video and audio peripherals: 
    Prevent vulnerable peripherals from mediating between computers by ensuring that video, audio and USB data flows in a single direction.
  • Protect against unauthorized peripheral device threats:
    Threats imposed by peripheral devices that should not be connected to a specific peripheral sharing switch port (e.g., a USB mass storage device mistakenly connected to the keyboard port).
  • Protect against authorized but untrusted peripheral device threats:
    Threats imposed by legitimate and authorized peripheral devices (such as a standard USB keyboard) that may be vulnerable to malicious attacks and cause data leakage when switched between sources.
  • Duplicate & Extend view modes: 
    Support flexible presentation options to fit any use case scenario.
  • AUX Channel protection: 
    Leakage prevention through patented AUX channel firewall technology. Signaling attacks prevented by design. EDID is fully functional.
  • Biometric/Smart-Card reader support: 
    Connect a smartcard/biometric reader to the KVM's DPP secure port to support user authentication across multiple isolated computers.
  • Future-proof: 
    Supports latest keyboards, mice and all Operating Systems.
  • Highest security by design: Common Criteria EAL 4+ approved, compatible with NIAP security requirements.


Keyboard & Mouse Threats Protection


Monitor / Display Threats Protection



Audio Threats Protection



Hardware & Firmware Tampering Protection



USB Threats Protection


K524E Secure KVM Switch: 4-Port, DisplayPort Video, Dual-Display

Numbers of Computers


Number of Displays


Resolution Supported

All DisplayPort 1.2 resolutions up to 3840×2160 by 30 bpp @ 60Hz. Supports 17.28 Gbps @ a 4-lane link.

Console Mouse and Keyboard Ports

2* USB Type-A female connector or 2* PS/2 Mini-DIN 6-pin female connector (1 port for mouse and 1 port for keyboard)

Console Display Ports

 2 x DisplayPort 1.1 and 1.2

Console Audio Jack

3.5mm female

Console DPP Input

USB Type A

Computer Display Ports

2 x DisplayPort 1.1 and 1.2

Computer Audio Jack

3.5mm female

Computer Keyboard/Mouse Ports

USB Type B

Computer CAC Ports

USB Type B


320 (W) x 130 (D) x 65 (H) mm / 12.8 (W) x 5.2 (D) x 2.6 (H) inch


1.47 Kg. (3.2 lbs.)

Power Requirements

100–240VAC, 2.5A Max, 50/60Hz

AC Input


Power Type


Operating Temperature

32° to 104° F (0° to 40° C)

Storage Temperature

-4° to 140° F (-20° to 60° C)


0-80% RH, non-condensing


Common Criteria EAL 4+ ALC_FLR.3


EN 55022, EN 55024, EN 61000-3-2, FCC Part 15

Product Life-Cycle

10 years


2 years

K524E - 4-Port Dual-head High Security DisplayPort KVM Switch, USB PS/2 keyboard and mouse, 2 x DisplayPort video, Audio out, USB user authentication port, Active anti-tampering, Front panel push-buttons         


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