Belkin F1DN104MOD-DD-4 – 4-Port Single Head DVI Modular Secure KVM Switch PP4.0

Product Overview

The Belkin F1DN104MOD-DD-4 is a 4-port, single-head DVI modular secure KVM switch certified to NIAP Protection Profile PP4.0, designed for government and enterprise multi-domain workstations requiring certified isolation across up to four connected computers. This secure KVM switch enables a single operator to control four isolated systems from one keyboard, video, and mouse setup, with hardware-enforced data separation that prevents any cross-domain information transfer. The modular chassis design supports field-swappable I/O modules, providing long-term adaptability for AV integrators managing large-scale government AV and IT deployments. DVI-I single-head video per port supports high-resolution digital display operation across all four connected hosts.

Product Description

When a government operator or defense contractor analyst needs to access four distinct security domains from a single workstation, the F1DN104MOD-DD-4 provides the certified, hardware-enforced solution. NIAP PP4.0 certification confirms that this unit meets the current U.S. government standard for peripheral sharing switches, including requirements for unidirectional data flow enforcement, USB HID traffic filtering, anti-tamper protection, and tamper-evident chassis construction.

The 4-port configuration is particularly well suited to intelligence analysts and network operations center operators who routinely work across multiple classification levels or network domains simultaneously. Each port is independently controlled by a dedicated security microcontroller, ensuring that no electronic path exists between any two connected computers. The modular I/O architecture allows AV integrators to configure DVI outputs on each port module, and the chassis can accept alternative module types to accommodate future video interface migrations without replacing the entire unit.

Port switching is accomplished via front-panel pushbuttons or an optional remote control. USB keyboard and mouse signals are fully scrubbed and re-generated at each switch event, eliminating HID-channel covert communication paths. Analog stereo audio is switched per port with complete electrical isolation. The F1DN104MOD-DD-4 is TAA compliant and operates without host-side driver installation, supporting Windows, Linux, and thin-client environments.

Key Features

• NIAP PP4.0 Certified — Certified to the current U.S. government protection profile standard, required for peripheral sharing switches deployed in classified and multi-domain government workstation environments.
• 4-Port Configuration — Supports up to four isolated host computers, enabling analysts to operate across four security domains or networks from a single workstation.
• Modular I/O Architecture — Field-swappable DVI port modules allow future video interface adaptation without replacing the chassis, protecting procurement investment over extended deployment lifecycles.
• DVI-I Single-Head Video — Each host port provides single-head DVI-I video output supporting high-resolution digital displays on all four connected systems.
• Hardware-Enforced Port Isolation — Dedicated security microcontrollers and optical data diodes per port enforce strict data separation, with no electronic signal path between connected hosts.
• USB HID Traffic Scrubbing — Keyboard and mouse signals are fully re-generated at each switch event to eliminate covert HID-channel data transfer.
• Anti-Tamper Protection — Tamper-evident chassis construction with permanent lockout on unauthorized opening attempts, meeting physical security requirements for classified spaces.
• Analog Audio Isolation — Stereo audio switched per port with full electrical isolation between all four host channels.
• TAA Compliant — Trade Agreements Act compliant for U.S. federal government procurement via GSA schedule.
• Driver-Free Operation — Standard USB HID compatibility with no software or drivers required on connected host computers.

Typical Applications

• Government space
• Boardroom
• Commercial meeting space
• Multi-purpose room

Technical Specifications

Frequently Asked Questions

What environments is the F1DN104MOD-DD-4 approved for?

This switch is NIAP-certified to PP4.0, making it approved for use in U.S. government classified environments, Department of Defense facilities, and any regulated enterprise workstation environment that mandates certified peripheral isolation.

How many computers can this switch support simultaneously?

The F1DN104MOD-DD-4 supports four host computers, each connected via a dedicated DVI-I port module. All four hosts remain powered and running; the operator switches control between them without disrupting background processes on inactive hosts.

Why choose a modular KVM switch over a fixed-connector model?

The modular architecture allows the I/O port modules to be replaced or upgraded independently of the chassis. This is advantageous in large government deployments where video standards may change over the product's 7-10 year procurement lifecycle, avoiding full unit replacement.

Does this switch support CAC reader functionality?

The F1DN104MOD-DD-4 base configuration does not include an integrated CAC reader. If CAC reader support is required, consider the F1DN202KVM-UN-4 or contact your procurement team for CAC-capable modular variants.

Is the F1DN104MOD-DD-4 TAA compliant?

Yes, this product is fully TAA compliant and eligible for procurement via U.S. federal GSA schedule contracts.

What operating systems are compatible?

The switch is compatible with Windows, Linux, macOS, and thin-client environments. It operates as a USB HID device requiring no host-side drivers.

What is the warranty coverage?

Belkin provides a 3-year limited warranty on this product. Contact Belkin enterprise support for government or volume purchase warranty extensions.