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Rectangular AT power supply unit with matte metal casing and integrated cables visible

myVolts

myVolts 420 W AT Power Supply 5.86" x 3.3

SKU CH-QXS8-VR5NG

AT power supply delivering 420 W max and 280 W total with reduced depth for tight cases

  • Product typeAT
  • Reduced depth fits tight cases
  • 86" x 3.3" compact form factor
  • 420 W peak power handles demanding loads
  • 280 W continuous output for stable operation
  • 24-pin ATX plus SATA and Molex connectors included

Compact AT Replacement PSU

This 420 W AT power supply replaces Hipro HP-A2027F3 and HP-D2537F3R units in HP, Dell and Compaq desktops. Its reduced depth of 5.86" x 3.3" fits standard ATX slots without extending as far as traditional PSUs. The unit delivers 280 W total continuous power across +5 V, -5 V, +12 V1, +12 V2, +3.3 V, -12 V and +5 V-SB rails.

80 mm Fan Cooling & Low Ripple

An 80 mm fan provides active cooling for stable, long-life operation while maintaining low ripple and noise. The PSU accepts 110/220 V AC input at 47–63 Hz and meets Hi-Pot, RoHS and CE standards. Hold-up time is 17 ms at nominal input with a rise time under 70 ms.

Fixed Cable Harness With SATA Power

Built-in cables terminate in a 24-pin (20+4) ATX connector, one 4-pin CPU connector, three SATA 15-pin connectors, two Molex 4-pin connectors and one floppy 4-pin connector. This fixed harness covers motherboard, CPU, SATA drives, legacy IDE peripherals and floppy devices without modular cables.

How it compares

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

Price $101.99
Cheaper than about 67% 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 this reduced-depth AT power supply in a standard ATX slot without the 5.86" depth causing alignment issues?

Mount the unit in the ATX opening using the four case screws; the shorter 5.86" depth means the rear face sits further forward, so verify the IEC socket clears the case cut-out before tightening.

Which component will need replacement first on this 420 W max unit with an 80 mm fan?

The 80 mm cooling fan is the primary wear item; expect bearing noise or reduced airflow after several years of continuous operation.

What limit appears first when running this supply at sustained load given the 280 W total-wattage rating?

The 280 W combined output cap is reached before the 420 W peak figure, so continuous draws above 280 W will trigger protection shutdown.

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