A SATA connector consists of a signal connector and a power connector. The SAS connector adds a bridge (primary physical link) between the signal connector and the power connector. This means SAS backplane connectors can accept either drive type, but SATA backplane connectors can ONLY accept SATA drives. Figure 3 shows these connectors.
| Serial Att ached SCSI |
| Power |
| SAS Backplane |
SAS Primary | Recept acle Connector |
| |
Physical Link |
|
|
| Power |
| Serial A TA | SAS Secondary |
|
| |
Power |
| Physical Link |
| SATA/SAS | |
|
| Primary |
SATA |
| Physical Link |
Physical Link |
|
|
|
| Note: SA TA backplane connectors |
|
| will NOT accept SAS drives |
Figure 3. SAS and SATA Plugs and SAS Backplane Connector
Intel® RAID Controller SRCSAS144E Hardware Guide | 10 |