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Black rectangular ATX power supply unit with side fan grille and visible rear connectors

myVolts

myVolts ATX-250W 250W power supply

SKU CH-0A24-QGNSN MPN ATX-250W

A 250W ATX power supply with manual 115/230V switching, 80% efficiency, 20+4 pin motherboard connector, 4-pin CPU, 6-pin video card, two SATA, two fan headers, thermal fan control, 1.1m cord.

  • Product typeAT
  • Clearly marked connectors speed up installation
  • Low power draw and quiet fan suit basic desktops
  • Manual 115/230V switch adds voltage flexibility
  • Thermal sensor adjusts fan speed automatically
  • 1 metre power cord reaches most wall sockets

250W ATX power supply for basic desktops

The myVolts ATX-250W delivers 250W of continuous power through a 20+4 pin motherboard connector, a 4-pin CPU connector, two SATA connectors and a 6-pin video card connector. It targets low-energy office or home PCs that do not require high-wattage components. Manual 115/230V input switching allows worldwide use without automatic detection.

Thermals, noise and power draw

A 12 cm fan is regulated by an internal thermal sensor, so speed rises only when the unit warms up during normal operation. Efficiency exceeds 80 percent, limiting waste heat and keeping acoustic output low for a basic desktop system. Hold-up time is greater than 10 ms and the design is rated for 100000 hours of service life.

Build integration

The chassis measures approximately 140 x 150 x 86 mm and fits standard ATX mounting points. A 1.1 metre mains cord reaches wall sockets without extension leads. Two fan headers and two SATA power plugs support essential cooling and storage devices, while the single 6-pin PCIe connector limits the graphics options to entry-level cards.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $50.99
Cheaper than about 90% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeAT

Questions about this item

How do I install the ATX-250W and which connector step is often missed?

Mount the unit in a standard ATX bay using the 140 x 150 x 86 mm dimensions, connect the 20+4 pin motherboard plug and the 4 pin CPU 12V plug, then flip the 115/230V switch to match your mains before powering on.

What maintenance or replacement will this 250W supply need later?

The internal thermal sensor controls the 12 cm fan speed automatically; after roughly 100000 hours of service life the fan bearings or electrolytic capacitors are the typical wear items to replace.

What limit appears first when the ATX-250W runs under sustained load?

With no active PFC and an efficiency rating above 80%, the 250W rated power ceiling is reached before the 10 ms hold-up time or the 1.1 m power cord become limiting factors.

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