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Rectangular silver metal PSU unit with 8-pin connector visible

myVolts

myVolts 420W Power Supply for Dell Optiplex MT 3020 7020 9020 8-Pin

SKU CH-0AQ4-GT0Z4

Replaces a 290W Dell Optiplex MT unit with a 420W AT supply that adds an 8-pin motherboard connector and extra cables for upgrades

  • TypeAT
  • Higher 420W output replaces the original 290W unit
  • 8-pin motherboard connector plus extra cables for new parts
  • Compact 5.9" height and 3.4" width fits tight MT cases
  • Built-in over-current, over-power, over-voltage and short-circuit protection
  • 110-260V AC switchable input works worldwide

Upgrade for Dell Optiplex MT

This 420W power supply replaces the original 290W unit in Dell Optiplex MT systems including the 3020, 7020 and 9020 models. It fits the proprietary motherboard connector and reduced-depth chassis used by these mini-tower workstations.

Builders adding discrete cards or drives

The higher wattage and extra connectors support graphics cards, additional storage or other upgrades that the stock 290W unit cannot handle. It is not for USFF, SFF or DT form factors, nor for systems that do not use the listed Dell part numbers.

8-pin motherboard connector plus extras

The bundle includes the specific 8-pin connector required by Optiplex motherboards plus additional leads for new components. Over-current, over-power, over-voltage and short-circuit protection are built in, and the 110-260V AC switchable input works worldwide.

Privalumai

  • Higher 420W output replaces the original 290W unit
  • 8-pin motherboard connector plus extra cables for new parts
  • Compact 5.9" height and 3.4" width fits tight MT cases
  • Built-in over-current, over-power, over-voltage and short-circuit protection
  • 110-260V AC switchable input works worldwide

Specifikacijos

TypeAT

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Which Dell Optiplex models does this 420W power supply replace the 290W unit in?

This unit fits Dell Optiplex MT chassis models 3020, 7020 and 9020 that originally used a 290W power supply with an 8-pin motherboard connector.

Will the reduced depth of 5.9 inches height by 3.4 inches width clear the same mounting points as my existing 290W supply?

Yes, the smaller footprint is designed for increased compatibility inside the same MT chassis, so it aligns with the original mounting holes and clearance.

How can I verify the over-current and over-voltage protections are active after installation?

The supply powers on normally; if a fault occurs the protection circuits will shut the unit down, so a stable boot and continued operation confirm they are functioning.

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