Belkin Secure Modular KVM Switch – 4-Port Dual Head NIAP PP4.0

Product Overview

The Belkin Secure Modular KVM Switch (F1DN204MOD-PP-4) is a compact, 4-port dual-monitor NIAP PP4.0-certified secure KVM switch designed for government, military, and enterprise IT environments requiring cross-domain isolation in the smallest available desktop form factor. This TAA-compliant secure KVM switch uses purpose-built interchangeable cables to deliver universal video compatibility — supporting DisplayPort, HDMI, DVI, VGA, and USB-C across its input channels — while maintaining full NIAP Protection Profile for Peripheral Switching Devices version 4.0 security compliance. The included remote control and optional VESA and under-desk mounting accessories make it well-suited for space-constrained operator workstations and secure facility installations.

Product Description

The F1DN204MOD-PP-4 belongs to Belkin's Secure Modular KVM and KM Switch Series, which prioritizes compact footprint without sacrificing the security architecture mandated by NIAP PP4.0. Unlike traditional monolithic KVM designs, the modular approach uses a set of TAA-compliant purpose-built cables — available separately — to interface each computer input with any monitor output on any channel. This cable flexibility allows IT administrators to manage video standard mismatches across heterogeneous environments without external video converters, extending the useful life of the KVM as infrastructure evolves.

Optical data diodes and embedded peripheral emulation on each channel enforce hardware-level isolation between connected computers and prevent timing-based side-channel attacks through continuous keyboard and mouse emulation on all inactive ports. The dual-head output simultaneously drives two independent monitors per operator, enabling side-by-side display of multi-domain content within the physical security boundaries of the installation. Maximum video resolution reaches 3840x2160 (4K UHD) at 30Hz per display head via the purpose-built cable system.

The included remote control provides full KVM channel switching from the operator console, reducing the need to interact directly with the unit body. Optional VESA and under-desk mounts with integrated cable management support clean, organized installations in tight spaces. Three USB ports serve keyboard, mouse, and additional peripheral connections. US-manufactured and TAA compliant, the F1DN204MOD-PP-4 is suitable for procurement on government contract vehicles and supports 120V-230V AC input for flexible facility deployment.

Key Features

• NIAP PP4.0 Certified - Common Criteria validated to NIAP Protection Profile for Peripheral Switching Devices v4.0 in the smallest available 4-port dual-head form factor.
• Modular Cable System - Interchangeable TAA-compliant purpose-built cables support DisplayPort, HDMI, DVI, VGA, and USB-C video standards without external converters.
• 4-Port, Dual-Monitor Configuration - Connects up to four computers with two simultaneous display outputs per operator workstation.
• Optical Data Diodes per Channel - Hardware-enforced unidirectional data paths prevent cross-domain data leakage across all four channels.
• Embedded Peripheral Emulation - Continuous keyboard and mouse emulation on inactive channels eliminates timing-based side-channel exploits.
• Included Remote Control - Provides full channel switching from the operator position without touching the KVM unit directly.
• Optional VESA and Under-Desk Mounts - Purpose-built mounting accessories with integrated cable management support monitor-back and under-desk installations.
• Universal Video via Purpose-Built Cables - Supports DisplayPort, HDMI, DVI, VGA, and USB-C input standards up to 4K at 30Hz with available cables.
• Compact Small Footprint - Purpose-built for space-constrained secure workstation environments where larger KVM form factors are impractical.
• TAA Compliant, US-Manufactured - Eligible for GSA Schedule and government contract procurement; manufactured in the United States.
• Universal AC Input - Accepts 120V-230V AC for domestic and international deployment.

Typical Applications

• Space-constrained government and DoD workstations requiring NIAP PP4.0-certified 4-port dual-head KVM switching
• Secure facility operator stations where compact form factor and VESA/under-desk mounting are required
• Federal agency and defense contractor desktops requiring TAA-compliant multi-domain KVM procurement
• Intelligence community and military installations with heterogeneous video standard environments
• Enterprise multi-level security environments standardizing on NIAP-certified modular KVM infrastructure

Technical Specifications

Frequently Asked Questions

Is the F1DN204MOD-PP-4 NIAP PP4.0 certified?

Yes. This unit is Common Criteria certified to NIAP Protection Profile for Peripheral Switching Devices version 4.0, meeting current federal and DoD secure KVM procurement requirements.

What makes this a "modular" KVM switch?

The modular design uses interchangeable TAA-compliant purpose-built cables — sold separately — to support multiple video standards (DisplayPort, HDMI, DVI, VGA, USB-C) on any input channel. This eliminates the need for external video converters and allows the same KVM to adapt as connected systems change over time.

Does the F1DN204MOD-PP-4 include a CAC reader?

No. This model does not include an integrated per-port CAC reader. If DoD CAC authentication is required, consider the Universal 2nd Gen models (F1DN204KVM-UN-4 or F1DN104KVM-UN-4) which include integrated CAC readers.

Is this product TAA compliant?

Yes. US-manufactured and fully TAA compliant, qualifying for GSA Schedule and government procurement contracts.

What is the maximum video resolution?

Using the purpose-built cable system, the unit supports up to 4K UHD (3840x2160) at 30Hz per display head. This is different from the Universal 2nd Gen series which achieves 4K at 60Hz via internal combo connectors.

What mounting options are available?

Optional Belkin mounting accessories support VESA monitor-back mounting and under-desk installation, both with integrated cable management for clean operator desk configurations.

Does this KVM include a remote control?

Yes. A remote control is included, allowing full KVM channel switching from the operator position without accessing the unit body directly.

What warranty does this product carry?

A 1-year limited warranty is included. Belkin provides US-based complimentary technical support. Extended warranty options may be available through your reseller.