Avocent Cybex SC945XD
Best secure KVM switch for government and high-security IT professionals.
The Avocent Cybex SC945XD is a highly secure 4-port desktop KVM switch designed to meet stringent U.S. government security standards, including NIAP Protection Profile V3.0. It ensures complete network isolation with unidirectional data diode technology and supports dual-monitor video up to 4K resolution. This unit features a dedicated USB 3.0 peripheral port for secure connections to CAC smart card readers and biometric devices. Enjoy zero-delay switching and true image reproduction across multiple video interfaces, making it ideal for high-security environments where productivity is essential.
$1437.18
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Owner Satisfaction
4.7
/ 5
Category Rank
1
/ 1363
Best KVM Switches
Price vs Category Average
+32%
Above average
Ports
4
/ Computer Ports
Who it's for
- Government agencies requiring strict data isolation and security compliance
- Creative professionals needing high-resolution 4K multi-monitor workflows
- IT security teams managing sensitive data in high-risk environments
Who should skip it
- Non-technical users looking for a simple plug-and-play setup experience
- Budget-conscious buyers seeking standard home or office switching solutions
- Users requiring USB peripheral support for webcams or external storage
Performance breakdown
Security Compliance
NIAP Protection Profile V3.0 certification ensures top-tier defense for sensitive environments.
Network Isolation
Unidirectional data diodes provide an impenetrable barrier against cross-network data leakage.
Video Fidelity
Supports crisp 4K resolution, though limited to 30Hz refresh rates.
Peripheral Security
Dedicated USB 3.0 port safely handles CAC and biometric authentication hardware.
Switching Speed
Zero-delay switching maintains seamless productivity across all four connected systems.
Build Integrity
Robust desktop chassis designed for long-term reliability in mission-critical workspaces.
Key Specs
Ports
4 Computer Ports
Video Output
Dual Monitor (HDMI 1.4 to DVI-I Dual Link + DisplayPort 1.2)
Maximum Resolution
UHD 4K (3840x2160 @ 30 Hz) via DisplayPort
Dimensions
13.7 in (W) x 2.2 in (H) x 5 in (D)
Weight
1.85 kg
Power Supply
100 to 240VAC
Compatibility
NAIP Protection Profile for Peripheral Sharing Devices version 3.0
Certifications
RCM, EU, FCC Class B, VCCI, c-UL
Features
- Meets stringent NIAP Protection Profile V3.0.
- Unidirectional data diode ensures network isolation.
- Supports secure USB authentication devices.
- Prevents DDC signal leakage with patented emulation.
- Discrete paths prevent data transfer and crosstalk.
- Supports HDMI 1.4 for true image reproduction.
- Zero delay switching between sources.
- Unique indicators for lock status.
What customers say
Customers overwhelmingly value the Avocent Cybex SC945XD for its exceptional security and unwavering reliability, crucial for defense and government applications. Its NIAP PP 3.0 certification is a highly praised feature, guaranteeing secure system isolation. Reviewers consistently note the robust, enterprise-grade build quality and dependable performance in mission-critical settings, highlighting fast and reliable switching. Support for high-resolution video adds clarity. Although the initial cost is high, users consider it a necessary investment for the specialized compliance and core stability delivered. This device is regarded as essential, top-tier hardware for secure multi-domain access.
Know before you buy
This KVM switch is certified to meet the NIAP Protection Profile for Peripheral Sharing Devices version 3.0. This ensures it adheres to strict government-grade security requirements for network isolation and data protection.
Yes, the unit includes a dedicated USB 3.0 peripheral port specifically designed for secure authentication devices, including CAC smart card readers and biometric scanners.
Yes, the SC945XD is designed to support two monitors simultaneously. It features a combination of HDMI, DVI-I, and DisplayPort interfaces to accommodate dual-display configurations.
The switch supports UHD 4K resolution at 3840x2160. Please note that the maximum refresh rate at this resolution is 30 Hz when using the DisplayPort interface.
The device uses unidirectional data diode technology and patented DDC signal emulation. These features ensure that data cannot flow between connected networks and prevent signal leakage, maintaining complete isolation.
You can switch between the four connected sources using keyboard hotkeys. The unit also provides unique visual indicators to show the current lock status of each channel.
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$1437