Fujitsu PRIMERGY TX2550 M4 Upgrade And Maintenance Manual page 205

Figure 124: Installing the SAS expander board holder (C)
Ê Connect six SAS cables C11 to all backplanes and the SAS expander board:
Connector on
backplane
BP1 X9
BP2 X9
BP2 X10
BP3 X9
BP4 X9
BP4 X10
TX2550 M4
Hard disk drive (HDD) / solid state drive (SSD)
Connector on SAS
expander board
X10
X11
X12
X13
X14
X15
Upgrade and Maintenance Manual
205