K248E Secure KVM Switch: 8-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 8 PORT KVM SWITCHES**

The K248E is a large secure 8-port, dual-head DVI-I secure 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.

Designed to allow streamlined access and control of multiple PCs and Servers the K248E is ideal for rack-mounting in server rooms & data center environments.

The K248E allows users to share peripherals - keyboard, video, mouse and audio - between eight 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 K248E 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 K248E users can save valuable desk area in space-restricted environments and increase productivity by interacting with up to eight dual-head computers using two displays and a single set of keyboard, mouse and audio.

How does it work?

  • Connect up to eight 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 eight 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


K248E Secure KVM Switch: 8-Port, DVI-I, Dual-Display Support 

No. of Computers


Number Of Displays


Resolution Supported


Console Display Port

2 x DVI-I Female

Console Mouse and Keyboard Ports

USB Type A/PS2

Console DPP Port

USB Type A

Console Audio Jack

3.5 mm Jack

DCU Port


Computer/Keyboard Mouse Port (per Computer)

USB Type B

DPP Port (per Computer)


Audio Jack (per Computer)

3.5 mm Jack


441(W) x 174 (D) x 92 (H) mm / 17.6 (W) x 6.96 (D) x 3.7 (H)


4.2 Kg. (9.2 lbs.)

Power Requirements

AC input IEC-3 jack

AC Input

Power input 90-240V AC

Power Type

Internal Power Supply

Operating Temperature

0ºC to 40ºC (32ºF to 104ºF)

Storage Temperature

-20ºC to 60ºC (-4ºF to 140ºF)


Operating - 20 to 80% non condensing; Storage – 10 to 90% non condensing

Security Accreditation

EAL 4+, EMI/EMC: FCC Class B, CE Mark, EN55022B, VCCI, UL/cUL60950,EN60 950

Product life-cycle

10 Years


2 Years

K248E - 8-Port 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, Internal power supply               


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