A4020B12UD-A Axial Fan | Three-Lead Harness Check
- Product SKU: CFS-U002151
- Category: 40x40x20mm Cooling Fans, DC Brushless Fans
Confirm Fit Before Ordering
Use this quick check first, then review the full Product Specifications tab before placing an order.
Share the original fan label, connector photo, or target quantity so the team can check compatibility or quote bulk supply.
Reference model: A4020B12UD-A
Product Specifications
Review the technical data used for replacement matching, procurement comparison and engineering approval.
A 4020B12UD-A identification and selection
The merchant model is SEI A 4020B12UD-A. The photo shows a square axial fan with three red, yellow and black leads. An exact-code PC Hub record gives 12V DC, 0.20A and 40x40x20mm, but the supplied label is not visible.
| Merchant model | A 4020B12UD-A; supplied label unconfirmed |
|---|---|
| Exact-code reference | 12V DC, 0.20A; 40x40x20mm |
| Visible harness | Three coloured leads; termination outside view |
| Bearing | Not independently confirmed for the supplied unit |
Does the three-lead photo establish a standard connector?
No. Compare the actual plug, keying and signal assignment. Retain the full UD-A suffix and check the depth and mounting holes. Marketplace speed, lifetime and bearing claims are not used without the matching manufacturer specification.
Product listing photograph; PC Hub exact-code reference.
Send the complete label, connector and mounting photos for matching help. For multiple units, request a quantity quote.
Compatibility Verification Checklist
Before ordering, please confirm these critical points:
- 1Exact model number on the original fan label
- 2Frame size: length, width and thickness
- 3Rated voltage and current
- 4Connector type and wire sequence
- 5Wire count: 2-wire, 3-wire or 4-wire PWM
- 6Airflow direction and mounting hole position
- 7Cable length and application environment
Still unsure? Send us photos of your fan label, connector and equipment. We will help check compatibility before you order.
Datasheet / Drawing
Use official documents and dimensional references when available. If a document is missing, contact us before ordering for replacement matching support.
Bulk Order
For repair batches, OEM projects or distributor replenishment, send the model number, target quantity, connector requirements and delivery destination.
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.
