[1]MiniTester™ Features:
-Standard size is 3U x 21hp 3.36mm deep
-MiniTesters™ may be "hot swapped"
-USB or RS485 link to host
-Status and activity indicators
-One MiniTester™ per product architecture
-Larger sizes possible
Links:
[1] https://www.chtech.com/content/minitester