Avocent Cybex SC920H
Best secure KVM for professionals handling sensitive, multi-network data environments.
The Avocent Cybex SC920H is a secure desktop KVM switch designed for high-security environments, meeting stringent U.S. government standards like NIAP Protection Profile V3.0. It ensures complete network isolation with unidirectional data diode technology and offers easy switching between two computer sources. Enhanced security features include active anti-tampering and holographic labels. This dual-monitor KVM supports HDMI 1.4 for UHD 4K resolutions up to 30Hz, providing clear visuals. It also includes audio support and user-friendly indicators for lock keys, ensuring efficient operation without compromising security.
$842.12
More SC Options
Owner Satisfaction
4.5
/ 5
Category Rank
114
/ 1363
#114 in KVM Switches
Price vs Category Average
-23%
Below average
Height
2.256
/ in ( mm)
Who it's for
- Government agencies requiring strict data isolation and security compliance
- Analysts needing high-resolution dual-monitor setups for complex workflows
- IT professionals demanding reliable, lag-free switching between secure systems
Who should skip it
- Budget-conscious buyers seeking standard commercial KVM solutions
- Users relying on external webcams or flash drive peripherals
- Home office workers needing simple, plug-and-play connectivity
Performance breakdown
Security Compliance
NIAP Protection Profile V3.0 certification ensures top-tier defense for sensitive environments.
Network Isolation
Unidirectional data diodes provide a robust barrier against cross-network data leakage.
Visual Fidelity
Supports 4K resolution, though the 30Hz refresh rate limits fluid motion.
Tamper Resistance
Active anti-tampering systems and holographic labels provide immediate physical security verification.
Switching Efficiency
Zero-delay switching allows for seamless transitions between two secure computer sources.
Build Durability
Compact, rugged chassis designed for reliable performance in demanding professional workspaces.
Key Specs
Height
2.2 in (56 mm)
Width
7 in (178 mm)
Depth
2.4 in (61 mm)
Weight
1.5 lbs (0.7 kg)
Video Interface
1 x HDMI 1.4
Maximum Resolution
UHD 4K resolutions up to 3840x2160 @ 30 Hz
Supported Monitor Count
2
Number of Computer Ports
2
Features
- NIAP Protection Profile V3.0 certified for high security.
- Unidirectional data diode for complete network isolation.
- Active anti-tampering system and tamper-evident labels.
- Prevents DDC signal leakage with patented emulation.
- Zero delay switching between sources.
- Supports dual monitors up to UHD 4K @ 30Hz.
- Flexible audio device assignment.
- Clear NUM/CAPS/Scroll Lock indicators.
What customers say
The Avocent Cybex SC920H earns high marks primarily for its unwavering reliability and critical security compliance. Customers operating in highly regulated environments consistently praise its flawless performance and robust NIAP certification, confirming it meets stringent defense and government standards. While the initial investment is significant, users view the seamless, dependable operation and superior build quality as essential justification for the cost. This KVM switch delivers necessary peace of mind where security cannot be compromised.
Know before you buy
This KVM switch is NIAP Protection Profile V3.0 certified, meeting stringent U.S. government standards for secure information handling in high-security environments.
It utilizes unidirectional data diode technology to ensure that data can only flow in one direction, preventing cross-contamination between networks and maintaining complete isolation.
Yes, the SC920H supports dual monitors with UHD 4K resolutions up to 3840x2160 at a 30Hz refresh rate via its HDMI 1.4 interface.
The device features an active anti-tampering system that detects unauthorized access attempts, complemented by tamper-evident holographic labels to ensure the unit's integrity.
Yes, it includes keyboard and mouse emulation, which helps prevent DDC signal leakage and ensures secure, reliable communication between your peripherals and the connected computers.
You can toggle between sources using either the physical push buttons located on the unit or via keyboard hotkeys for a quick, zero-delay transition.
Still have a question?
Ask Hayley anything about this product before you decide.
Ready to buy?
$842