External reference: FLOWMAX/Minebea BL4447-04W-B49-71, DC12V 2.0A; four red/black/white/yellow leads and a pale housing. Image does not prove the actual shipping unit, condition or supplied full option. Verify measured fit, connector and pinout before ordering; lead count does not establish control functions.
External reference: FLOWMAX/Minebea BL4447-04W-B49-71, DC12V 2.0A; four red/black/white/yellow leads and a pale housing. Image does not prove the actual shipping unit, condition or supplied full option. Verify measured fit, connector and pinout before ordering; lead count does not establish control functions.
Technical media Confirm label, connector and fit
External reference: FLOWMAX/Minebea BL4447-04W-B49-71, DC12V 2.0A; four red/black/white/yellow leads and a pale housing. Image does not prove the actual shipping unit, condition or supplied full option. Verify measured fit, connector and pinout before ordering; lead count does not establish control functions. Connector photo
NMB

NMB BL4447-04W-B49-71 12V DC 2A DC Centrifugal Blower

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.
Confirm availability View full specifications Send fan photos
Price
$23.79
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: BL4447-04W-B49-71

Product Specifications

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

Reference photograph and supply verification

Different-unit reference of FLOWMAX/Minebea BL4447-04W-B49-71, labelled DC12V 2.0A. Four red/black/white/yellow lead sections and a pale source housing are visible; the historical terminal lies beyond its photograph boundary. Auxiliary label marks differ, with meaning and version equivalence unverified. The image does not establish the shipping unit, connector series, keying or control functions. Confirm the actual full label, condition, measured fit, harness, connector and pinout before ordering.

Reference source. Historical listing photographs are backed up in store records outside the public gallery.

NMB BL4447-04W-B49-71 DC Centrifugal Blower

Historical listing photographs show the NMB BL4447-04W-B49-71 centrifugal blower with 12V DC and 2A on the label; they do not verify the current shipping unit.

Brand NMB / MinebeaMitsumi
Manufacturer part number BL4447-04W-B49-71
Rated voltage 12V DC
Rated current 2A
Fan type DC centrifugal blower

Compatibility checklist

Match BL4447-04W-B49-71 character by character. Also compare the supply voltage, current, housing geometry, mounting points, outlet direction, lead count, connector and pinout with the existing blower. Similar suffixes are not assumed to be interchangeable.

Verification scope

The historical photographed label is the basis for the model and electrical transcriptions above; the supplied unit remains unverified. NMB documentation identifies BG, BL and BM devices as centrifugal blower families. Housing dimensions are intentionally omitted here because an exact suffix-level dimension source was not available. RPM, airflow, noise, static pressure and connector pinout are not stated without an exact suffix-level source.

CoolingFanStore is an independent multi-brand cooling-fan retailer operated by Guangzhou Yougu Electronic Technology Co., Ltd.; it is not presented as an NMB factory or official store.

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 BL4447-04W-B49-71
Manufacturer / brand NMB
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.