A4020B03MO Fan - Identification Pending

Available: Confirm availability
Compatibility checkpoint

Confirm Fit Before Ordering

Use this quick check first, then review the full Product Specifications tab before placing an order.

Before ordering: Compare the original fan label, frame size, rated voltage/current, connector, wire count, airflow direction and mounting holes.
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Price
$20.99
Need confirmation before ordering?

Share the original fan label, connector photo, or target quantity so the team can check compatibility or quote bulk supply.

Request Bulk Quote Ask Compatibility Check Send Fan Photos

Reference model: A4020B03MO

Product Specifications

Review the technical data used for replacement matching, procurement comparison and engineering approval.

A4020B03MO identification and selection

Supplied version unverified. The sole front photograph shows a square axial fan, red/blue/black leads and a pale plug; the rear nameplate is not shown.

Selection details

Merchant references disagree between 5V and 3.3V. Confirm the actual supply from the rear nameplate before applying power.

Before ordering

Obtain the rear label and confirm voltage before applying power; compare the three-position plug and mounting depth. Match the actual supplied label and complete option before installation. Wire count alone does not establish PWM, signal function or pinout.

Existing listing photograph; send label and connector photographs; request a quantity quote.

Replacement confirmation

Compatibility Verification Checklist

Before ordering, please confirm these critical points:

  1. 1
    Exact model number on the original fan label
  2. 2
    Frame size: length, width and thickness
  3. 3
    Rated voltage and current
  4. 4
    Connector type and wire sequence
  5. 5
    Wire count: 2-wire, 3-wire or 4-wire PWM
  6. 6
    Airflow direction and mounting hole position
  7. 7
    Cable length and application environment

Still unsure? Send us photos of your fan label, connector and equipment. We will help check compatibility before you order.

Send Fan Photos Ask for Compatibility Check

Datasheet / Drawing

Use official documents and dimensional references when available. If a document is missing, contact us before ordering for replacement matching support.

Datasheet URL Contact us to confirm
Dimension drawing Contact us to confirm

Bulk Order

For repair batches, OEM projects or distributor replenishment, send the model number, target quantity, connector requirements and delivery destination.

Reference model A4020B03MO
Manufacturer / brand SEI
Request Bulk Quote

Shipping & Returns

Shipping options, lead time and return eligibility may vary by product, quantity and destination. Confirm compatibility before ordering replacement fans.

  • For bulk orders, request freight planning and availability confirmation before payment.
  • For replacement orders, compare model, size, voltage, current and connector before installation.
  • Unused items should remain in original condition for return review according to store policy.

FAQ

Common checks for replacement cooling fan sourcing.

Can you help match an old fan?

Yes. Send photos of the fan label, connector and equipment so we can check model, voltage, frame size and wiring.

Can I use a different brand as a replacement?

Often yes, but only after confirming frame size, electrical rating, airflow requirement, bearing type, connector and wire sequence.

What information is needed for a bulk quote?

Send part number, quantity, target lead time, connector or cable requirements and shipping destination.