The UBEX-Pro20-HDMI-F100, MMX4x2-HDMI and the HDMI20-OPTJ-RX90/TX90 variants got certified for the Tempest SDIP27 Level B standard, making them suitable for defense and intelligence projects.

The SDIP-27 Level B Certificate focuses on radiated magnetic waves of equipment used in classified and secret environments and assesses the eavesdropping risk. Please find the certification documents on the following product pages, under the ‘File Downloads’ tab.
LEVEL B - NATO SDIP-27
(FORMERLY AMSG 788A) AND USA NSTISSAM LEVEL II
TEMPEST Level B is the next highest NATO standard, also known as "IMMEDIATE". This standard applies to equipment that can not be heard from a distance of over 20 meters. This Tempest standard applies to equipment operating within NATO Zone 1. This standard protects equipment both from 20 meters of unobstructed distance and a comparable distance through walls and obstacles.