Belkin Universal 2nd Gen Secure KVM Switch F1DN104KVM-UNN4 4 Port Single Head DP HDMI 4K 60Hz No CAC NIAP PSD 4.0 TAA
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BELKIN
Belkin Universal 2nd Gen Secure KVM Switch F1DN104KVM-UNN4 4 Port Single Head DP HDMI 4K 60Hz No CAC NIAP PSD 4.0 TAA
€1354.58 inc. VAT
F1DN104KVM-UNN4
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Belkin Universal 2nd Gen Secure KVM — 4 Port, Single Head, No CAC
4 computers1 displayDP + HDMI 4K 60HzNIAP PSD 4.0No CAC port
The Belkin F1DN104KVM-UNN4 is a NIAP-certified secure KVM switch: it lets one keyboard, mouse, display and headset drive 4 separate computers, while physically preventing data from ever crossing between them. That is the whole point of a secure KVM — it is not a convenience switch, it is an isolation device for desks that touch networks of different classifications.
Isolation is enforced in hardware, not software. Optical data diodes force USB traffic one way only, the video path is kept separate from everything else, each port has its own processor and power domain, and the firmware physically cannot be read back or rewritten. There is no configuration that can accidentally weaken it.
Compatibility — check before buying:
Console side takes a USB Type-A keyboard and USB Type-A mouse — standard HID only. Wireless keyboards and mice are prohibited by design, and USB storage or composite devices are rejected outright. Video is a DisplayPort / HDMI combo connector on the console and on every computer port: DP 1.2 and HDMI 2.0 are auto-detected and converted internally, up to 3840 x 2160 at 60 Hz. DVI-D works through the recommended cables; there is no native VGA. Audio is a 3.5 mm output only, with ultrasonic filtering — there is deliberately no microphone input. This SKU has no CAC port. If you need a smart-card or CAC reader shared across the connected machines, the F1DN104KVM-UN-4 is the version to order.
Best For
✓Desks that must reach two or more networks of different classification from one set of peripherals
✓Government, defence and critical-infrastructure environments with a NIAP or Common Criteria requirement
✓Security operations centres and control rooms where an ordinary KVM would be an unacceptable data path
Key Features
Hardware isolation, not software
Optical data diodes give unidirectional, HID-filtered USB flow with more than 60 dB of channel isolation. The video path is kept separate from all other traffic and each port sits in its own power domain to block signalling attacks.
Always-on anti-tamper
Holographic tamper-evident labels plus an active anti-tamper system that stays armed in transit and after deployment. Belkin is explicit: any attempt to open the enclosure triggers it, renders the unit inoperable and voids the warranty.
Firmware that cannot be rewritten
All microcontrollers are protected against firmware read, modification and rewrite. There is no update path, which is the point — nothing can be flashed onto it in the field.
Audio-only, no CAC path
This model carries the audio channel but no user-authentication path at all. Fewer connected peripherals means a smaller attack surface — choose it when nobody at the desk uses a smart card.
Technical Specifications
Frequently Asked Questions
Singular Expert Insight
Two things decide which SKU you want. First, CAC: if anyone at the desk authenticates with a smart card, you need the -UN-4 version, and retrofitting is not possible. Second, heads: a dual-head unit switches two displays as one desktop, and buying single-head to save money means re-cabling later. Everything else in this range — certification, isolation, TAA status, resolution — is identical across the SKUs, so those two choices are the whole decision.
Buyer's Guide
Buy it if
Buy this if you need one desk to reach 4 isolated machines with hardware-enforced separation and a NIAP PSD 4.0 certificate and no smart-card requirement.
Skip it if
Skip it if you just want to share peripherals between two PCs — an ordinary KVM is a fraction of the price — or if your users authenticate with CAC or smart cards, in which case take the -UN-4 version.
Also consider
Also worth a look: the matching F1DN104KVM-UN-4 with a CAC reader port, the dual-head and higher port-count models in the same range, and our wider networking and desktop hardware lineup.
Features - BELKIN - F1DN104KVM-UNN4
Colour
black
More Details
Product Code
CA90196
EAN Code
0745883800919
Manufacturer
BELKIN