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

IntelĀ® RAID Controller SRCSAS144E Hardware Guide

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Intel srcsas144e manual SAS and Sata Plugs and SAS Backplane Connector