Fujitsu PRIMERGY TX2540 M1 Upgrade And Maintenance Manual page 178

Hard disk drives / solid state drives
4x 3.5-inch HDD extension box
Figure 108: 4x 3.5-inch HDD extension box - Rack version
Figure 109: 4x 3.5-inch HDD extension box - Tower version
I
The 4x 3.5-inch HDD extension box occupies accessible drive bays 1, 2
and 3. This box can also be equipped with a slimline ODD.
178
Bays 1-3
Upgrade and Maintenance Manual
Bays 1-3
TX2540 M1