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Rectangular metal power supply unit with fan grille and multiple cable connectors

Bestec Power Electronics

Bestec Power Electronics ATX-250-12Z-D2R 250W power supply

SKU CH-TAPD-Q8VHG MPN ATX-250-12Z-D2R

A 250 W ATX power supply with a 24-pin main connector, 4-pin ATX12V, two SATA and two Molex connectors, and a voltage selector switch for 115/230 V input

  • Product weight3
  • 250 W output powers compatible Compaq Presario and HP Pavilion desktops
  • 24-pin ATX plus 4-pin ATX12V connectors fit original motherboard sockets
  • Two SATA power ports support modern drives on revision D2R
  • Manual 115/230 V input switch matches local mains voltage
  • Single ball-bearing fan cools the 5.9" x 3.4" x 5.5" chassis

Ideal Replacement for HP and Compaq Desktops

This Bestec ATX-250-12Z-D2R power supply is a genuine 250W unit built to replace failed units in Compaq Presario and HP Pavilion desktops. It matches the HP part number 410507-001 and the D2R revision adds SATA power ports for more modern drives. The 24-pin ATX and 4-pin ATX12V connectors fit the original motherboards directly.

Fixed 250W Output and Manual Voltage Selection

The supply delivers a maximum of 250 watts, which limits it to the original low-power configurations of the listed Compaq and HP models. Input voltage must be set manually using the 115/230V switch before connecting to the mains. Builders needing more headroom for upgraded graphics cards or additional drives cannot use this unit.

Compact Steel Chassis with Ball-Bearing Fan

The enclosure measures 5.9 by 3.4 by 5.5 inches and weighs 3 units, fitting the standard ATX mounting points of the target chassis. A single ball-bearing fan provides cooling through the rear grille. The cable set includes one floppy, two Molex and two SATA power connectors, covering the drive complement of the compatible SR and DX series desktops.

How it compares

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

Price $36.99
Cheaper than about 93% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Brand nameBestec
Model nameATX-250-12Z-D2R / HP P/N: 410507-001

Questions about this item

How many SATA power connectors does the D2R revision provide?

The D2R revision includes two SATA power connectors for drives, plus one 24-pin ATX, one 4-pin ATX12V, two Molex and one floppy connector.

What does the 250 W rating mean for a desktop rebuild?

The 250 W rating is the total continuous output across all rails, suitable for the Compaq Presario and HP Pavilion desktops listed as compatible models.

How does the 115/230 V input switch affect installation?

You must set the switch to match your local mains voltage — 115 V or 230 V — before connecting the unit to the wall outlet.

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