Maxtor ATLAS 10K III Product Manual page 41

Installation
+ 0 6 ' 4 ( # % ' % 1 0 0 ' % 6 1 4 , 
The configuration of J1 is different for the 68-pin and 80-pin SCSI variations.
Figure 3-7 shows the various connector styles.
J1 SCSI (68-Pin)/DC (4-Pin)/Auxiliary (12-pin) Combination Connector
12-Pin Option
4-Pin DC
Connector
Power Connector
Pin 2
Pin 1 Pin 1
68-Pin SCSI-Bus Interface Connector
4 3 2 1
A M P
Pin 68
Pin 12 Pin 2
J1 SCSI (80-Pin) SCA Connector
Pin 2
Pin 1
Bottom
2.25±0.1
4.6±0.50
Pin 80
Top
J1 Interface Connector Configurations
Maxtor Atlas 10K III 3-15