Fujitsu PRIMERGY TX1320 M5 Upgrade And Maintenance Manual page 274

Front USB connector
Installing the front USB connector
Figure 173: Installing the front USB connector
▶ Place the front USB connector in the FBU tray and slide it in the direction of
the arrow until it locks in place.
▶ Fasten the USB front connector with two screws (see circles).
274 Upgrade and Maintenance Manual TX1320 M5