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Compact Micro PS3 unit, matte metal casing, single fan grille, standard ATX connector layout

Solid Gear

Solid Gear SDGR-MPS3-300 300 W Micro PS3 power supply

SKU CH-PEFA-N7DXV MPN SDGR-MPS3-300

A Micro PS3 ATX unit delivering 300 W with passive PFC, a 20+4 pin main connector, single +12 V rail, three SATA power connectors and over-voltage plus overload protection

  • TypeMicro PS3
  • Maximum Power300 W
  • Fans1
  • PFCPassive
  • Main Connector20+4 Pin
  • +12V RailsSingle
  • Delivers 300 W for budget builds
  • Single +12 V rail supplies 15 A to CPU and GPU
  • 20+4 pin main connector fits modern motherboards
  • Three SATA power connectors support multiple drives
  • Passive PFC accepts 110-120 V and 220-240 V input

Solid Gear Micro PS3 300 W unit

The Solid Gear SDGR-MPS3-300 is a Micro PS3 form-factor power supply rated at 300 W. It fits compact chassis that accept the Micro PS3 standard and provides a single +12 V rail. The unit uses passive power-factor correction and a single cooling fan.

Suits small-form-factor desktop builds

Builders assembling a low-power system in a Micro PS3 case will find the connector set adequate for a basic motherboard, CPU and a few drives. Systems that require higher wattage, multiple +12 V rails or modular cabling should consider a different power supply.

Single +12 V rail rated at 15 A

The +12 V output delivers up to 15 A, which determines how much power is available for the processor and graphics card. If the combined load of those components exceeds this current, the unit will not support the build.

Highlights

  • Delivers 300 W for budget builds
  • Single +12 V rail supplies 15 A to CPU and GPU
  • 20+4 pin main connector fits modern motherboards
  • Three SATA power connectors support multiple drives
  • Passive PFC accepts 110-120 V and 220-240 V input

Specifications

BrandSolid Gear
ModelSDGR-MPS3-300
TypeMicro PS3
Maximum Power300 W
Fans1
PFCPassive
Main Connector20+4 Pin
+12V RailsSingle
SATA Power Connector3
ModularNo
Over Voltage ProtectionYes
Overload ProtectionYes
Input Voltage110 - 120 V / 220 - 240 V
Input Current10A @ 115V, 6A @ 230V
+3.3V Max. Current12A
+5V Max. Current14A
+12V1 Max. Current15A
+5VSB Max. Current2A
12V Power Connector1 x 4 Pin ATX 12V
Floppy Connector1
Peripheral Connector3
Fans Total Quantity1
Top Fans Size80mm
Over Load ProtectionYes
Short Circuit ProtectionYes
Under Voltage ProtectionYes
Over Current ProtectionYes
Over Power ProtectionYes
Over Temperature ProtectionYes

Questions about this item

How much heat and noise does the 300 W unit with passive PFC and a single fan produce when running all day?

The supply uses passive PFC and one fan, so it will draw up to 10 A at 115 V or 6 A at 230 V and exhaust heat through that single fan; expect typical office-level noise rather than silent operation.

Which cables and connectors must my build already provide for this non-modular 300 W PSU to work?

It comes with a fixed 20+4 pin main connector, one 4-pin ATX 12 V CPU plug, three SATA power leads, three 4-pin Molex leads and one floppy lead; your motherboard and drives must accept those exact plugs.

Will the single +12 V rail rated at 15 A support an older graphics card that needs a 6-pin PCIe connector?

The unit only provides a 4-pin ATX 12 V connector and Molex leads; it has no 6-pin PCIe plug, so an older card requiring that connector cannot be powered directly.

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