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Black rectangular power supply unit with single 80 mm fan and visible cable bundle

TOPOWER

TOPOWER TOP-350PS3 350 W Micro PS3 ATX12V power supply

SKU CH-36WN-RA5SR MPN TOP-350PS3

A 350 W micro ATX12V unit with an 80 mm fan, 20+4 pin main connector, CPU 4+4 pin, one 6+2 pin PCIe, three SATA, three Molex, one 6 pin AUX, over-voltage and overload protection, and 100 mm depth

  • ColorBlack
  • TypeATX 12V
  • Maximum Power350 W
  • Fans1 x 80 mm
  • Main Connector20+4 Pin
  • +12V RailsSingle
  • 350 W continuous power for stable system operation
  • 100 mm compact depth fits small-form-factor cases
  • 20+4 pin, 4+4 pin CPU, 6+2 pin PCIe and 6 pin AUX connectors cover modern builds
  • Single +12 V rail simplifies power distribution
  • Over-voltage and overload protection safeguards components

Micro PS3 ATX12V 350 W power supply

The TOPOWER TOP-350PS3 is a compact 350 W unit built to the ATX12V standard for small-form-factor desktops or as a direct replacement in existing systems. It fits Micro PS3 chassis with a 100 mm depth and supplies a single +12 V rail rated for the full output.

Thermals noise and power draw

One 80 mm fan provides airflow through the enclosure while the supply draws 10 A at 115 V or 6 A at 230 V from the mains. Over-voltage and overload protection circuits shut the unit down if output limits are exceeded, keeping temperatures and acoustic levels predictable under normal load.

Bundled connectors and their effect

Fixed cables include a 20+4 pin motherboard connector, a 4+4 pin CPU plug, one 6+2 pin PCIe lead, one 6 pin AUX lead, three SATA power plugs and three Molex plugs. The mix covers a basic motherboard, processor, single graphics card and multiple drives without requiring modular cable management.

Highlights

  • 350 W continuous power for stable system operation
  • 100 mm compact depth fits small-form-factor cases
  • 20+4 pin, 4+4 pin CPU, 6+2 pin PCIe and 6 pin AUX connectors cover modern builds
  • Single +12 V rail simplifies power distribution
  • Over-voltage and overload protection safeguards components

Specifications

BrandTOPOWER
SeriesPS3
ModelTOP-350PS3
Part NumberTOP-350PS3
ColorBlack
TypeATX 12V
Maximum Power350 W
Fans1 x 80 mm
Main Connector20+4 Pin
+12V RailsSingle
PCI-Express Connector1 x 6+2 Pin
SATA Power Connector3
Max PSU Length100 mm
ModularNo
Over Voltage ProtectionYes
Overload ProtectionYes
Input Voltage115 / 230 V
Input Frequency Range50/60 Hz
Input Current10A @ 115V, 6A @ 230V
Output350W
Connectors1 x 24 pin (20+4) ATX
Power Rating350W
Size/Dimensions5.9"(W)x3.94"(L)x3.35"(H)
Weight3 LBS
Frequency Range50/60 Hz
+3.3V Max. Current12A
+5V Max. Current14A
+12V1 Max. Current18A
-12V Max. Current0.3A
+5VSB Max. Current2A
12V Power Connector1 x 4+4 Pin ATX/EPS 12V
Floppy Connector1
Peripheral Connector3
Fans Total Quantity1
Rear Fans Size80mm
Over Load ProtectionYes
Short Circuit ProtectionYes
Dimensions5.9"(W)x3.94"(L)x3.35"(H)

Questions about this item

How do I install the 100 mm micro ATX12V unit and which step is most often missed?

Mount the 100 mm deep chassis with four screws, connect the 20+4 pin motherboard plug and the 4+4 pin CPU plug, then switch the 115 / 230 V selector to match your mains before powering on.

What maintenance or replacement will the 80 mm fan need later?

The single 80 mm fan should be cleaned of dust every few months; if bearing noise appears, replace the entire unit because the supply is non-modular and the fan is not user-serviceable.

Which limit appears first during sustained 350 W load?

The single +12 V rail and 80 mm fan cooling capacity will hit thermal or current limits before the 350 W rating is sustained continuously.

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