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Rectangular black metal power supply unit with cooling vents and two cable connectors

Vszerda

Vszerda 255W H255ES-00 power adapter for Dell Optiplex 3020 7020 9020 Precision T1700 SFF

SKU CH-NH4V-JFV8V

255 W power supply for Dell Optiplex 3020, 7020, 9020 and Precision T1700 SFF systems with 8-pin and 4-pin ATX connectors

  • 255W maximum output keeps Dell SFF systems running reliably
  • 100-240V 50-60Hz input works on mains power worldwide
  • 8-pin and 4-pin ATX connectors match motherboard requirements
  • Tested before shipment so the unit arrives ready to install
  • Replaces H255ES-00 and multiple Dell part numbers directly

255W SFF replacement PSU

The Vszerda H255ES-00 is a 255 watt power supply built for Dell Optiplex 3020, 7020, 9020 and Precision T1700 small form factor desktops. It matches the original part numbers H255ES-00, D255AS-00 and YH9D7. Buyers restoring or repairing these specific SFF chassis can install it directly.

Sustained 255 watt delivery

Rated for continuous operation at 255 watts DC output, the unit accepts 100 to 240 volt AC input at 50 to 60 hertz with a 4.6 amp draw. Each unit is tested before shipment to verify stable output under load. Builders needing higher continuous power for expanded configurations should look elsewhere.

Dual ATX connector layout

The supply provides an 8 pin ATX connector labelled P1 and a 4 pin ATX connector labelled P2. Both must match the motherboard headers in the target Dell SFF system. Systems requiring additional PCIe power connectors or different pin counts are not supported.

How it compares

Measured against everything we stock in AC Adapters & Power Bricks, at today’s prices. Recalculated every night.

Price $124.99
Pricier than about 90% of the 3,875 comparable items (median $23.99).

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Specifications

No published specifications for this item yet.

Questions about this item

Does the 255 W unit run quietly during continuous all-day use?

The adapter is tested before shipment and fits the compact SFF chassis designed for office acoustics.

Must I already have the 8-pin and 4-pin ATX cables inside my Dell Optiplex 3020, 7020, 9020 or Precision T1700 SFF?

Yes, the PSU provides P1 8-pin ATX and P2 4-pin ATX connectors that plug directly into the motherboard.

Will this H255ES-00 supply work with the original Dell Optiplex 3020, 7020, 9020 and Precision T1700 SFF motherboards?

It matches part numbers YH9D7, R7PPW, 3XRJ0 and others listed for those exact SFF systems.

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