Cable routing with an SFF RAID adapter (tri-mode)
The following table shows the mapping relationship between backplane connectors and adapter connectors 
when a Gen 4 8i SFF RAID adapter (tri-mode) is installed.
Table 24.  Mapping between backplane connectors and adapter connectors when a Gen 4 8i SFF RAID adapter (tri-mode) 
is installed
Backplane From To
Front BP (SAS) SAS 0 C0
Note: If a tri-mode RAID adapter is used, only U.3 front drives are supported, and U.2 front drives are not 
supported. 
The following figure illustrates the cable routing for the configuration of 4 x 3.5-inch front U.3 drive bays with 
a 16i SFF RAID adapter (tri-mode). Connections between connectors: 
1  ↔  1 ,  2  ↔  2 ,  3  ↔  3 , ...  n  ↔  n
Figure 23. Cable routing for 4 x 3.5-inch front U.3 drive bays with a Gen 4 8i SFF RAID adapter (tri-mode)
Chapter 3. Internal cable routing 69