A Closer Look


Seasonic S-12 500 comes in a color graphic retail box with carrying handle.



No shining chrome finish, just plain black matt paint coating and no fancy LED fan neither. The cable management kit (Dr. Cable), a 4-pin connector allowing the connection of three fans (2 in 5 Volt and 1 in 12 volt), a manual, 4 mounting screws and finally the power cord are included in the package.

The overall dimension is 140x150x85 mm, typical of any standard size power supply (no oversize here).



Looking inside the power supply voided the warranty, there is not much to see there, but a couple of large heatsink covering a large surface area for the 12 cm fan to cool. No trim pots to be found inside. The ADDA 12 cm fan has no LED light.





The honey comb construction at the rear should allow sufficient exhaust in venting the hot air from both the power supply and the chassis.



The 24-pin connector can be easily converted to 20-pin. The 8-pin 12 volt connector is on the right for dual CPU configuration.



Easy swap 4-pin and dual 6-pin PCIe connector.


Cable lengths – (CM/2.5 = inch)



• 24/20 Pin main 40 cm
• 2x 2 SATAs 43 cm to first connector and another 15 cm to the second connector
• 2x 3 4-pin 33 cm to the first + 1 floppy
• 1x 8-pin 12 volt 47 cm
• 2x 6-pin 54 cm to first connector
• 1x 4-pin 12 volt 45 cm



Seasonic employs a special circuit which evaluates both load and ambient temperature to optimize fan speed (cooling) and noise ratio.



Power factor explains higher efficiency results to lower thermal loss