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8820-02954 Rev.A00

F1DNUSB-BLK SECURE USB PORT BLOCKER 1 PORT
F1DN-FLTR-HID-4 SECURE USB HID FILTER 2 PORT
F1DN-FLTR-DPP-4 SECURE USB DPP FILTER 2 PORT

Objectives

•  This guide includes instructions for installing Belkin’s F1DNUSB-BLK, F1DN-FLTR-HID-4, and F1DN-FLTR-DPP-4 USB security device family.

•  Belkin’s HID filter (F1DN-FLTR-HID-4) allows secure, unidirectional connection of USB keyboard and mouse. The USB HID Filter blocks all USB traffic except standard 

keyboard and mouse in one direction only (Note-The CAP, NUM, SKL Lock lights will not light on the keyboard being used with the filter).

•  The Configurable Filter version (F1DN-FLTR-DPP-4) allows secure connection of two administrator-approved USB devices based on VID/PID characteristics. By 

default the configurable filter will allow the use of USB authentication device (IE: CAC Card Reader).

•  The USB Blocker (F1DNUSB-BLK) – Is a mechanical USB port cover that physically locks individual USB ports.

•  This Manual and additional product documentation is available for online download on the Belkin website. For further assistance please refer to: http://www.belkin.

com/us/Resource-Center/Cybersecurity/Secure-KVM-Switching/.

Quick Installation Guide

USB Blockers and HID or Programmable Filter

Installation

•  Connect the Filter or blocker devices to the PC 

based on the type of USB devices you would like 
to use.

•  Note: 

Once installed it is impossible to remove 

the device from the USB port!

•  Whenever protecting a PC, It is highly 

recommended to use at least one configurable 
filter and one HID filter.

•  Block all other open ports with the USB Blocker 

plugs.

•  Note:

 Programable filter configuration will allow 

the administrator to create a white list and black 
list rules, allowing and preventing specific USB 
devices. This configuration is not covered by the 
manual. Contact your administrator.

Operation

•  Connect USB devices to the filter(s) installed per 

the above instructions.

•  Keyboard and Mouse to the HID filter (Black 

Enclosure). 

•  Any authorized USB device to the DPP 

programmable filter (Red Enclosure).

•  Use the USB blocker in all remaining USB ports 

to be protected.

•  LED behavior on the filter(s)

 

No device inserted to the filter USB port with 
the filter installed in a working PC – LEDs 
light RED.

 

Approved USB device inserted to the filter 
USB port with the filter installed in a working 
PC – LEDs light GREEN.

 

Rejected USB device inserted to the filter 
USB port with the filter installed in a working 
PC – LEDs FLASH.

 

Note-even if one of the inserted devices is 
accepted and the second one rejected – Both 
LEDs will FLASH.

 

Neither port will operate.

This product is certified to the NIAP Protection 

Profile PSS version 4.0, certification for peripheral 

sharing switch devices.
In addition we, Belkin International Inc, of 12045
E. Waterfront Drive, Playa Vista, CA 90094, 

declare under our sole responsibility that the 

products described in this manual comply to the 

declarations found at:
http://www.belkin.com/us/support-article? 

articleNum=289064

Supported Hardware:

The filters support most standard USB keyboards 
and mice.

Wireless keyboards and mice should not be used 
and are not supported.

Environmental

•  Operating temperature is 32° to 104°  

F (0° to 40° C).

•  Storage temperature is -4° to 140°  

F (-20° to 60° C).

•  Humidity requirements are 0-80% relative 

humidity, non-condensing.

Operating Systems

•  Microsoft® Windows®

•  Red Hat®, Ubuntu® and other Linux® platforms

•  Mac OS® X v10.3 and higher

Power

Provided by PC USB Port 

F1DN-FLTR-HID-4, and F1DN-FLTR-
DPP-4 Dimensions

W 30mm x H 18.35mm x L 59.5mm  
Cable length: 141mm

F1DNUSB-BLK Dimensions

W15.4mm X H 7.8mm x depth 11.6mm

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