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7K200 SATA OEM Specification 

 

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7   Electrical interface specifications 

7.1  Cabling 

The maximum cable length from the host system to the hard disk drive plus circuit pattern length in the 
host system shall not exceed 1 meter. 

7.2  Interface connector 

The figure below shows the physical pin location. 

 

Figure 3. Interface connector pin assignments

 

 

All pins are in a single row, with a 127 mm(.050”) pitch. 

 

The comments on the mating sequence in Table in the section 7.3 apply to the case of back-plane 

blind-mate connector only. In this case, the mating sequences are:(1)the ground pins P4 and 

P12;(2) the pre-charge power pins and the other ground pins; and (3) the signal pins and the rest 
of the power pins. 

 

There are three power pins for each voltage. One pin from each voltage is used for pre-charge in 

the backplane blind-mate situation. 

 

If a device uses 3.3V, then all V33 pins must be terminated. Otherwise, it is optional to 

terminate any of the V33 pins 

 

If a device uses 5.0V, then all V5 pins must be terminated. Otherwise, it is optional to terminate 
any of the V5 pins 

 

If a device uses 12.0V, then all V12 pins must be terminated. Otherwise, it is optional to 

terminate any of the V12 pins.