Avocent 1 x 4-port SwitchView SC420 KVM Switch with USB/DVI-I/Audio/CAC Support and Intrusion Detection

£663.99 includes FREE UK Postage (other delivery options available)

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The Avocent SwitchView SC440 KVM switches offer proven, secure access for any workstation environment where security is mandatory. With USB Common Access Card (CAC) reader support, and controlled USB connectivity, you can consolidate multiple workstations of varying security classification levels with one keyboard, monitor and mouse without compromising network security. Three levels of physical security including tamper-evident tape, chassis intrusion detection and locked memory prevents malicious tampering with the switch. Dual link video offers uncompromising video quality up to 2560 x 1600 @ 60 Hz.


The SwitchView SC440 switches allow desktop IT administrators to deploy a single CAC reader that will switch to all computers connected to the switch. (CAC support is required for all government employees attempting to log in to government systems and is specified in the Homeland Security Presidential Directive 12 [HSPD12].) These switches include three layers of tamper-proof hardware security at the desktop. In addition, SwitchView SC420 switches ensure that only USB human interface devices (HID’s) function on target computers by constantly monitoring all devices attached to the console ports. These switches ignore communication from non-HID’s (such as flash drives, hard disk drives, cameras and printers) when switching data to the target.


Screen Type


Resolution (Maximum)

2560 x 1600dpi


KVM Ports

4 PC Port(s) x 1 Console Port(s)

PC USB Port(s)


PC Monitor Port(s)


PC Audio Port(s)


Console Monitor Port


Console Audio Port


Console Microphone Port




C-TICK, cUL, ICES-003, Class A, CE3, VCCI Class A, UL, FCC Class A, CE, Solaris Ready, in in process for NIAP Common Criteria EAL 4+


Electrical Voltage

100 to 240VAC

Electrical Frequency

50 to 60Hz


Operating Temperature

Operating Temperature 5 to 40°C



26.35cm (W) x 18.26cm (D) x 4.76cm (H) - Weight 1.45kg


  • Avocent 1 x 2-port SwitchView SC420 KVM Switch with USB/DVI-I/Audio/CAC Support and Intrusion Detection
  • NIAP certification: The SwitchView SC420 is in process for NIAP Common Criteria validation to EAL 4+
  • Software security: U.S-designed firmware allows only keyboard, mouse and common access cards (CAC) human interface devices (HID) to switch to the target computers. Devices considered unsecure, such as flash drives or other mass storage devices, cameras and all other USB devices, are strictly prohibited by the switch firmware
  • Physical security: Tamper-evident tape - A visual indication of an attempt to gain access to the internal components of the switch • Chassis intrusion detection: Prevents malicious tampering with the switch. If the cover is removed from the switch, the switch becomes inoperable and the LEDs flash • Locked memory: Prevents tampering and reprogramming of the firmware
  • Secure channels: Two (SC420) fully secure channels isolated to 60dB. Safely switch between computers operating at different classification levels – without compromising network security
  • Clears buffer: Automatically clears the keyboard buffer immediately after data is transmitted through the switch, so no data is ever left in the switch
  • Supports USB peripherals
  • Audio switching: Enables you to share speakers and a microphone between computers
  • Advanced Video: Dual link DVI video supporting resolutions up to 2560 x1600 @ 60Hz
  • Multi-platform support: Supports Windows, Mac and Sun workstations
  • Doubles as a monitor stand: Doubles as a monitor stand with zero footprint on the desk
  • Peripherals: USB keyboard, USB mouse, USB CCID Smart Card reader or CAC reader and IntelliMouse (USB only)

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Catalogue No: EL-00018465