4-Port Secure KM Switch with KB/Mouse USB emulation


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Type: KM Switch
Ports: 4-Ports
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SKMN-4S: Ultra-Secure KM SwitchingMade In America

The SKMN-4S is a 4-port Secure USB KM switch. It allows users to control keyboard-mouse functions of connected systems using a single USB keyboard-mouse combo.The SKMN-4S allows users to control KM (Keyboard and Mouse) operation on up to four computers. It features mechanical, electrical and optical signal isolation to prevent hacking and data leakage in environments where security is paramount.

With the SKMN-4S, all data relays are controlled by inverted signals, shielding connections from outside intrusion by forcing them each to work one at a time. Each port uses its own isolated data channel and each unit features non-reprogrammable ROM to better protect the switch's functions. Better yet, the SKMN-4S offers the highest security when accessing classified and public networks over the internet through these isolated connections. By isolating connections between networks, the SKMN-4S ensures no data is leaked between secure ports and the outside world.

The SKMN-4S has clearly marked front-panel buttons for controlling the device, so securely switching between sources is always simple. For high-grade secure switching made easy, look no further than the SKMN-4S.

SKMN-4S Application Diagram
SKMN-4S Application Diagram

Key Features

Security Features

  • Non-reprogrammable ROM
  • Active Anti-tamper switches
  • Long-life internal Anti-tampering battery
  • External tamper-evident seals
  • Keyboard and Mouse emulation
  • Absolute isolation - No data leakage between ports
  • Certified by NIAP, the latest Common Criteria (Protection Profile for Peripheral Sharing Switch Version 3.0)

> View the NIAP certification and validation documents here.

SKMN-4S Package Includes

  • 1 x 4-Port KM Secure KM Switch w/ Audio, PP 3.0
  • 1 x PS12V2A power supply
  • Cables not included:
    • Per target system: 1 x USB Type-A to Type-B cable, 1 x 3.5mm Stereo audio cable

Rear view of the SKMN-4S
SKMN-4S Back

SmartAVI SKMN-4S Specifications

Learn More: SmartAVI SKMN-4S Brochure (PDF)
SmartAVI SKMN-4S Manual (PDF)

Input Interface(4) USB Type B
Output Interface(2) USB 1.1 Type A for KM devices
EmulationKeyboard and Mouse
Audio Input(4) 3.5mm stereo audio
Audio Output(1) 3.5mm stereo audio
Front PanelFront panel SELECT buttons
PowerExternal 100-240 VAC/ 12VDC2A @ 24W
Dimensions12.57" W x 1.76" H x 6.69" D
Weight4.2 lbs
ApprovalsNIAP PP 3.0, UL, CE, ROHS Compliant
Operating Temp.+32 to +104°F (0 to +40°C)
Storage Temp.-4 to 140°F (-20 to +60°C)
HumidityUp to 80%
UPC / EAN Barcode icon
UPC 68691122491
EAN 068691122491