Dell EMC PowerEdge T640 - Page 146

Figure 93. 3.5 inch x8 SAS/SATA to internal PERC
1
SAS cable (BP: SAS_A0 to internal PERC card: SAS_A) 2 SAS cable (BP: SAS_B0 to internal PERC card: SAS_B)
3 internal PERC 4 3.5 inch x8 SAS/SATA backplane
146 Installing and removing system components