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ITX-ATX Power Supply Connector Pinout for 20 and 24 pin systems
DC Input mini-ITX style power supply, 12 volts input
Click here for DC Input mini-ITX Style power supplies		 24 volt input ATX dc to dc power supplyClick here for 24 Volts DC Input ATX Power Supply 48 volt input ATX dc to dc power supplyClick here for 28 volts DC input ATX Power Supply

For more DC/DC converters from PowerStream click here:More DC/DC Converters

Custom design and manufacture of state-of-the-art battery chargers, UPS, and power supplies for OEMs in a hurry!

Pin for 20 pin connector Purpose Wire Color ......  Alternate
1 +3.3Vdc Orange    
2 +3.3Vdc Orange    
3 GND Black    
4 +5Vdc Red    
5 GND Black    
6 +5Vdc Red    
7 GND Black    
8 PWR-OK Gray    
9 +5Vdc
VSB
standby Voltage		 Purple    
10 +12Vdc Yellow    
11 +3.3Vdc Orange
   Brown may represent 3.3Vdc
sense 
12 -12Vdc Blue    
13 GND Black    
14 PS-ON Green   Shorting this to ground turns on the supply
15 GND Black    
16 GND Black    
17 GND Black    
18 -5Vdc White    
19 +5Vdc Red    
20 +5Vdc Red    

For 24 pin systems use the following table:
Pin for 24 pin connector Purpose Wire Color ......  Alternate
1 +3.3Vdc Orange    
2 +3.3Vdc Orange    
3 GND Black    
4 +5Vdc Red    
5 GND Black    
6 +5Vdc Red    
7 GND Black    
8 PWR-OK Gray   A signal from the Power Supply saying that the output voltages are within range
9 +5Vdc
VSB
standby Voltage		 Purple    
10 +12Vdc Yellow    
11 +12Vdc Yellow    
12 +3.3Vdc Orange
    
13 +3.3Vdc Orange    
14 -12Vdc Blue    
15 GND Black    
16 PS-ON Green   Shorting this to ground turns on the supply
17 GND Black    
18 GND Black    
19 GND Black    
20 -5Vdc White    
21 +5Vdc Red    
22 +5Vdc Red    
23 +5Vdc Red    
24 GND Black    


Note: To turn on the power supply Pin 14 must be attached to GND (Pins 13, 15, 16, or 17).
Note: Many of these converters need a minimum current draw on at least one of the power pins to operate in regulation.


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PowerStream Technology: 140 South Mountainway Drive, Orem Utah 84058
Phone: 801-764-9060, 9062, 9063, or 9064 DC/DC Converters for OEMs from PowerStream Fax: 801-764-9061

 

PowerStream Technology
140 South Mountainway Dr.
Orem, UT 84058
Phone: 801-764-9060, 9062, 9063, or 9064
Fax: 801-764-9061
Map & Directions

 

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