SmartAVI 4-Port Secure Pro KM Switch
Best secure switch for professionals managing multiple isolated network environments.
The SmartAVI SKMN-4S is an ultra-secure 4-port USB Keyboard and Mouse (KM) switch designed for environments where data security is paramount. It enables a single workstation to control up to four connected systems safely, ensuring absolute isolation between secure and public networks. This device is ideal for sensitive access control, featuring mechanical, electrical, and optical signal isolation with inverted signals to prevent data leakage. Built with non-reprogrammable ROM and active anti-tamper switches, it meets strict security standards for critical applications.
$584.00
Owner Satisfaction
4.7
/ 5
Category Rank
1
/ 1363
Best KVM Switches
Price vs Category Average
-46%
Below average
Port Count
4
Who it's for
- Multitasking professionals managing multiple secure networks simultaneously
- IT security managers protecting sensitive hardware from physical tampering
- Government and defense contractors requiring strict data isolation
Who should skip it
- Budget-conscious buyers seeking standard office hardware solutions
- Users relying on specialized or custom peripheral hardware
- Power users needing high-speed data transfer and USB hubs
Performance breakdown
Security Compliance
NIAP PP 3.0 certification ensures top-tier protection for sensitive network environments.
Data Isolation
Hardware-level signal separation effectively eliminates risks of cross-network data leakage.
Switching Reliability
Mechanical and optical isolation provides consistent, error-free transitions between connected systems.
Tamper Resistance
Active anti-tamper switches and non-reprogrammable ROM prevent unauthorized hardware modifications.
Peripheral Compatibility
True USB emulation ensures seamless keyboard and mouse recognition across platforms.
Build Integrity
Robust desktop chassis designed to withstand the rigors of critical infrastructure.
Key Specs
Port Count
4
Emulation
KB/Mouse USB emulation
Input Interface
(4) USB Type B
Output Interface
(2) USB 1.1 Type A for KM devices
Audio Input
(4) 3.5mm stereo audio
Audio Output
(1) 3.5mm stereo audio
Control
Front panel SELECT buttons
Power
External 100-240 VAC/ 12VDC2A @ 24W
Features
- Securely control four separate computers.
- Seamless mouse and keyboard switching.
- Designed for high-security environments.
- Supports Windows, Mac, and Linux.
- Tactile front panel buttons with LEDs.
- Ensures absolute data isolation.
- Includes USB emulation for peripherals.
- Certified to strict security standards.
What customers say
Customers overwhelmingly value the SmartAVI 4-Port Secure Pro KM Switch for its uncompromising security and robust reliability. IT professionals trust this device because it strictly adheres to high security standards, ensuring air-gap separation between connected systems. This effectively mitigates risks like data leakage and unauthorized access, which is vital for government and financial sectors. Users report that switching between the four ports is fast and seamless, maintaining productivity without sacrificing security protocols. While the initial cost is premium, customers agree it is a justified investment. The core value lies in the operational integrity and security compliance it consistently delivers, confirming its status as a top-tier professional solution.
Know before you buy
The SmartAVI SKMN-4S uses physical, electrical, and optical isolation to prevent data leakage between connected systems. It is certified to NIAP Protection Profile 3.0 standards, ensuring that your secure and public networks remain completely separated.
Yes, the switch is platform-agnostic and supports Windows, Mac, and Linux. You can connect computers running different operating systems to the four ports and switch between them seamlessly.
No, this is a dedicated Keyboard and Mouse (KM) switch. It is designed specifically to manage USB input peripherals across four systems, but it does not route video signals.
You can switch between systems using the tactile push buttons on the front panel, keyboard hotkeys, or mouse switching. The front panel LEDs provide a clear visual indicator of which system is currently active.
The unit is built with non-reprogrammable ROM and active anti-tamper switches. If the device casing is opened or tampered with, these internal mechanisms are designed to render the switch inoperable to protect your data integrity.
Yes, the device includes 3.5mm stereo audio inputs for each of the four ports and one shared audio output. This allows you to route audio from your selected computer to a single set of speakers or headphones.
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$584