| All cables and connectors  Connectors  Computer  Diskdrives| Pinout for:Apple Disk Drive Port |  | 
 
 
 Description : Apple Disk Drive Port
 
 Pinout :
 
 
 | Pin | Name | Description |  | 1 | GND | Ground |  | 2 | GND | Ground |  | 3 | GND | Ground |  | 4 | 3.5DISK | 3.5 or 5.25-inch drive select. |  | 5 | -12V | -12 volt supply. |  | 6 | +5V | +5 volt supply. |  | 7 | +12V | +12 volt supply. |  | 8 | +12V | +12 volt supply. |  | 9 | DR2 | Drive 2 Select. |  | 10 | WRPTOTECT | Write protect input. |  | 11 | PHASE0 | Motor Phase 0 output. |  | 12 | PHASE1 | Motor Phase 1 output. |  | 13 | PHASE2 | Motor Phase 2 output. |  | 14 | PHASE3 | Motor Phase 3 output. |  | 15 | WREQ | Write request. |  | 16 | HDSEL | Head Select. |  | 17 | DR1 | Drive 1 select. |  | 18 | RDDATA | Read data input. |  | 19 | WDATA | Write data output. | 
 Note : Apple Disk Drive Port
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