K224E Secure Mini-Matrix KVM: 4-Port, DVI-I Video

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System Diagram

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

The K224E is the next generation of secure KVMA switches hav‌ing all conventional KVMA capabilities and much more.

The K224E is a secure 4 port Mini-Matrix KVMA switch which allows a single user to share two displays and a single set of keyboard, mouse & audio between multiple computers that belong to 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.

The K224E 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.

The K224E best suites manager offices and meeting rooms that frequently host multi-participant meetings where multiple computers need to be simultaneously presented on multiple monitors and big screen TVs, as wells as, control rooms where often operators are required to integrate information from several isolated sources on multiple displays in real-time.

 How does it work?

  • Connect up to four computers and two displays to the Mini Matrix.
  • Connect a smartcard/biometric reader to the Mini Matrix DPP secure port to support user authentication across multiple isolated computers.
  • Computers and peripherals are fully isolated from each other.
  • User can select which source to present on each of the two attached displays. Duplicating and extending a single source is also supported.
  • User can interact with multiple computers at the same time using a single set of keyboard and mouse.
  • Seamlessly switch between the selected sources by moving the mouse cursor across screen boarders.
  • Audio is switched automatically once control is switched to another source.
  • Simultaneously control 2 out of 4 source computers and view up to 4 computer monitors at the same time
  • Virtual Display Technology (VDT):
    Seamless keyboard, mouse and audio switching between computers once mouse cursor crosses display borders.
  • 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.
  • Cost effective solution: 
    More flexible than a KVM, less space consuming than a KM, less expensive than a KVM Combiner.
  • Flexible video projection: 
    Interact with multiple computers and project to multiple connected displays. Duplicate presentor / guest computer display onto a big screen TV.
  • Biometric/Smart-Card reader support:
    Connect a smartcard/biometric reader to the Mini Matrix 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



K224E Secure Mini-Matrix KVM: 4-Port, DVI-I Video

No. of Computers


Console Mouse and Keyboard Ports

2 * USB Type A, 2 * PS\2

Console DPP Port

1 * USB Type A

Console Audio Jack

3.5mm Female

Console Video

2 *  DVI-I Female connector

Remote control

RDC (RJ45 port)

Computer/Keyboard Mouse Port (per Computer)

USB Type B

DPP Port (per Computer)

USB Type B

Computer Audio Jack (per Computer)

3.5mm Female

Video Port (per computer)

DVI-I Female connector


80 (W) x 158 (D) x 34 (H) mm / 3.15 (W) x 6.22 (D) x 1.34 (H) inches


1 Kg. (2.2 lbs.)

Power Requirements

12V DC, 1.5A (max) power adapter with center-pin-positive polarity

AC Input:

100 to 240VAC

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

Security Accreditation

Common Criteria EAL 4+ ALC_FLR.


 2 years

Product life-cycle

10 years

K224E: 2-Port, 4-Display High Security Mini Matrix KVM, USB & PS/2 supported, Dual Head, DVI-I dual-link video, Audio out, Active anti-tampering, Front panel push-buttons, RC Port, Internal power supply



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