K244E Secure KVM Switch: 4-Port, DVI-I, Dual-Display Support

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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 K244E is a secure 4-port, DVI-I, dual-head KVM Switch with a special secured USB port for smartcard/biometric reader. It supports DVI-I video as well as VGA video using an adapter.

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 K244E 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 K244E 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.
  • DVI-I & VGA support: 
    Supports DVI-I video as well as VGA video using an adapter.
  • 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


K244E Secure KVM Switch: 4-Port, DVI-I,
Dual-Display Support

Host Input Ports

Four input ports from host computers hav‌ing:

  • 4 x DVI-I Female connectors (VGA and HDMI supported) for Primary Video
  • 4 x DVI-I Female connectors (VGA and HDMI supported) for Secondary Video
  • 4 x USB Type-B connectors for keyboard and mouse
  • 4 x Audio out 3.5 mm stereo jacks for audio input
  • 4 x Dedicated Peripheral Ports  USB Type-B connectors

Console ports

  • 2 x DVI-D Female connector for user displays
  • 2 x USB Type-A jacks for USB Mouse & Keyboard
  • USB port for DPP (user authentication device)
  • PS/2 keyboard connector (DIN-5)
  • PS/2 mouse connector (DIN-5)
  • Audio out 3.5 mm stereo jack for audio output
  • Remote Desktop Controller (RDC) port

Channel Switching

  • Front Panel push buttons
  • Keyboard shortcuts
  • Remote Desktop Controller (RDC) (Sold separately)

Video modes supported

  • DVI Dual-link supports resolution up to 2560 x 1600.
  • DVI Single-link supports resolution up to 1920x1200.
  • HDMI supported through adapters or cables.
  • VGA display supported. Resolution up to 2048x1536.


  • DC input 12V / 2.5A maximum
  • Wall mounted power supply included. Power input 90-240V AC


  • Temperature range: Operating - 0ºC to 40ºC (32ºF to 104ºF); Storage -  -20ºC to 60ºC (-4ºF to 140ºF)
  • Humidity: Operating - 20 to 80% non condensing; Storage – 10 to 90% non condensing

Regulatory Compliance

  • Safety: UL/cUL60950,EN60 950
  • EMI/EMC: FCC Class B, CE Mark, EN55022B, VCCI

Security Accreditations

  • Common Criteria EAL 4+ ALC_FLR.3 certified
  • Complies with NIAP Peripheral Sharing Switch (PSS) For Human Interface Devices Ver 2.1

Physical Characteristics

  • Dimensions: 320(W) x 130 (D) x 65 (H) mm / 12.8 (W) x 5.2 (D) x 2.6 (H) inch
  • Device weight: 1.82 Kg. (4 lbs.)

Warranty, reliability

  • Product life-cycle 10 years
  • Warranty 2 Years


K244E - 4 Ports Dual-head High Security KVM switch, USB PS/2 keyboard and mouse, DVI-I dual-link video x 2, Audio out, USB user authentication port, Active anti-tampering, Front panel push-buttons, RDC Port

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