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Rectangular silver AT power supply unit with rear fan grille and side voltage switch

myVolts

myVolts 350 W AT power supply 115/230 V manual switching

SKU CH-BXMA-K97HP

Delivers 350 W to an AT system with manual 115/230 V switching and a thermally controlled 12 cm fan

  • TypeAT
  • 350 W rated power for basic desktop builds
  • > 80 % efficiency reduces energy draw
  • Thermally controlled 12 cm fan keeps noise low
  • Manual 115/230 V switch suits global mains
  • 20+4 pin ATX plus 4+4 pin CPU and 6+2 pin GPU connectors

350 W AT power supply

This myVolts unit delivers 350 W through an AT form factor with manual 115/230 V switching. It targets builders repairing or assembling basic desktop systems that require low energy consumption and quiet operation.

Replaces older AT supplies

The 20 + 4 pin motherboard connector and dual 4 pin CPU power plugs match legacy ATX12V 2.31 requirements. A thermal-sensor fan and double magnetic ring design reduce noise, making the upgrade worthwhile when an existing unit fails or lacks sufficient connectors.

Suits basic desktop builds

Ideal for low-power office or home PCs using SATA drives and a single 6 + 2 pin graphics card. Not suited for systems needing active PFC, higher wattage headroom, or modern ATX12V connectors beyond the 4 pin CPU interface.

Highlights

  • 350 W rated power for basic desktop builds
  • > 80 % efficiency reduces energy draw
  • Thermally controlled 12 cm fan keeps noise low
  • Manual 115/230 V switch suits global mains
  • 20+4 pin ATX plus 4+4 pin CPU and 6+2 pin GPU connectors

Specifications

TypeAT

Questions about this item

Will the 140 x 150 x 86 mm case fit in my AT chassis?

The unit measures 140 x 150 x 86 mm, matching the standard AT form factor for desktop chassis.

How do I set the 115/230 V switch before first power-on?

Slide the manual voltage selector to 115 V or 230 V to match your mains supply before plugging in the 1.1 m power cord.

When should I clean or replace the 12 cm thermal-controlled fan?

Vacuum the 12 cm fan intake every 6–12 months; replace the fan if bearing noise appears or airflow drops noticeably.

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