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Silver ATX power supply unit with 12cm fan and 1.1m power cord

myVolts

myVolts ATX-250W 250W power supply 115/230V

SKU CH-8H2D-HMSB8 MPN ATX-250W

A 250 W AT power supply with 115/230 V manual switching, 80 % efficiency, a thermally controlled 12 cm fan, 20+4 pin motherboard connector, 4 pin CPU connector, two SATA connectors.

  • TypeAT
  • Delivers 250 W for reliable desktop operation
  • Manual 115/230 V switching adapts to local mains
  • Thermal sensor adjusts fan speed for quieter running
  • 1 m power cord reaches distant sockets easily
  • 100 000 hour rated service life supports long-term use

250W ATX power supply for basic desktops

The myVolts ATX-250W delivers 250W rated power for low energy consumption systems. It uses a manual 115/230V voltage selector and operates above 80% efficiency. A 12cm fan is regulated by an internal thermal sensor. The unit measures 140 x 150 x 86mm and includes a 1.1m power cord.

Check connectors and voltage before fitting

Confirm the motherboard accepts a 20+4 pin main connector and a 4 pin 12V CPU connector. Verify the chassis can accommodate the 140 x 150 x 86mm form factor. Ensure the mains supply matches the 115V or 230V selector setting. The supply provides two SATA, one 6 pin video card, and two fan connectors.

Replaces older AT units below 250W

This unit supersedes lower wattage AT power supplies lacking a 20+4 pin main connector or SATA power leads. The upgrade is worthwhile when the existing supply cannot power a 6 pin graphics card or lacks automatic fan control. Rated service life is 100000 hours with a hold up time exceeding 10ms.

Highlights

  • Delivers 250 W for reliable desktop operation
  • Manual 115/230 V switching adapts to local mains
  • Thermal sensor adjusts fan speed for quieter running
  • 1 m power cord reaches distant sockets easily
  • 100 000 hour rated service life supports long-term use

Specifications

TypeAT

Questions about this item

What cables come in the box and what must I buy separately?

The box contains the 250W power supply and a 1.1 metre power cord. All motherboard, CPU, SATA and video-card connectors are built into the unit, so no extra cables are required for a standard build.

The unit is rated at 250W — is that the right capacity for my low-power desktop?

The 250W rating suits basic desktops with low energy consumption. It delivers a 20+4 pin motherboard connector, a 4-pin CPU plug, two SATA ports and a 6-pin video-card plug, covering typical entry-level configurations.

What does the >80% efficiency figure mean when the supply is running in my PC?

At typical load the unit converts more than 80% of AC input into usable DC power, so less energy becomes heat. The thermal sensor then slows the 12 cm fan, keeping noise low during everyday use.

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