Pinouts >  ATX, WTX and other standard and proprietary power supply (PSU) cables connectors  >  obsolete computers pinouts
Pin Name
1 +5V
2 +5V
3 +5V
4 +5V
5 GND1
6 GND2
7 GND3
8 GND4
9 +12V
10 KEY
11 -12V
12 +5V USER
13 -5V

You will be able to tell the orientation with the help of pin 10, it is missing.
Note: TICK is NOT found on PC power supplies

According to 3 reports in our database (3 positive and 0 negative) the Amiga 2000 Power Supply pinout should be correct.

Is this pinout
Source(s) of this and additional information: Amiga Power Supply pinouts at National Amiga, from Hardware Book
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