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Rectangular metal PSU unit, grey finish, rear fan grille, UK power cord attached

myVolts

myVolts ATX-250W 250W AT power supply British Flag Type

SKU CH-1EFA-AN8K1 MPN ATX-250W

A 250W AT power supply with manual 115/230V switching, thermal fan control and 1.1m cord for basic desktop systems

  • TypeAT
  • Quick, easy installation with clearly marked connectors
  • Manual 115/230V input switch for flexible voltage selection
  • Low energy consumption and low noise for basic desktop systems
  • Thermal sensor controls fan speed automatically for quieter operation
  • 1 metre power cord included for convenient placement

AT power supply for basic desktops

This unit delivers 250W through a 20+4 pin motherboard connector and a 4-pin CPU connector. Manual 115/230V switching lets it operate on either mains voltage. It targets low-energy, low-noise desktop builds that need a straightforward AT form factor.

Sustained operation with thermal fan control

An internal thermal sensor adjusts the 12cm fan speed based on temperature, keeping acoustic output low during continuous use. Efficiency exceeds 80% and hold-up time is greater than 10ms, supporting stable output under constant load. The 1.1 metre power cord provides flexible placement inside the case.

Replaces older AT units in legacy systems

It fits builds that require the AT form factor and 250W capacity with SATA and 6-pin video card connectors. The upgrade makes sense when a current supply lacks marked connectors, manual voltage switching or automatic fan control. Not suited for systems needing higher wattage, active PFC or additional PCIe power connectors.

Points forts

  • Quick, easy installation with clearly marked connectors
  • Manual 115/230V input switch for flexible voltage selection
  • Low energy consumption and low noise for basic desktop systems
  • Thermal sensor controls fan speed automatically for quieter operation
  • 1 metre power cord included for convenient placement

Caractéristiques

TypeAT

Questions sur cet article

How loud does the 12cm fan get when the thermal sensor ramps it up during long sessions?

The internal thermal sensor adjusts the 12cm fan speed automatically, so noise rises only when the unit needs extra cooling and stays low during light loads.

Which cables or adapters do I need to already have to connect the 20+4 pin motherboard plug and the 4 pin CPU plug?

Both the 20+4 pin motherboard connector and the 4 pin CPU 12V connector are built into the unit, so no extra cables are required for those connections.

Will the manual 115/230V switch and AT form factor work reliably with a legacy motherboard that only has a 20 pin socket?

The 20+4 pin plug splits to fit a 20 pin socket, and the 115/230V manual switch lets you match the local mains voltage for older systems.

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