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Rectangular 90×180mm blower fan with four-wire lead

SXDOOL

SXDOOL BG0903-B049-P0S 90×180mm 12V 2.65A 4-wire case fan

SKU CH-3DRP-W4V89 MPN BG0903-B049-P0S

A 90×180 mm 12 V 2.65 A four-wire blower fan with double ball bearings and 50 CFM airflow for Dell OptiPlex GX280 chassis cooling

  • DELL original turbine blower fits Optiplex GX280
  • NMB double ball bearings deliver ultra-quiet operation
  • 12 V 2.65 A four-wire PWM speed control
  • 90 × 180 mm chassis cabinet cooling form factor
  • 50 CFM airflow for instrument and system cooling

Replacement Blower for Dell OptiPlex GX280

This 90×180 mm turbine-style blower is a direct replacement for the Dell OptiPlex GX280 and 4700C chassis. It draws 2.65 A at 12 V and spins on NMB double ball bearings rated for quiet, high-speed operation. The four-wire lead provides PWM control and tachometer feedback to the motherboard header.

Four-Wire PWM Integration

The 4-wire connector plugs straight into a standard 4-pin CPU or chassis fan header, allowing the board to regulate speed automatically. Because the assembly uses a blower housing rather than an open frame, it exhausts heat directly out of the rear vent without relying on case airflow paths. This frees up internal space around the CPU socket and memory slots.

50 CFM Focused Airflow

At 50 CFM the blower delivers a concentrated stream suited to the restricted ducting of small-form-factor Dell chassis. It handles the thermal load of the original Pentium 4 platform within the OEM airflow path. Builds that have been upgraded with higher-wattage processors or added expansion cards may exceed the static-pressure capability of this single blower.

Highlights

  • DELL original turbine blower fits Optiplex GX280
  • NMB double ball bearings deliver ultra-quiet operation
  • 12 V 2.65 A four-wire PWM speed control
  • 90 × 180 mm chassis cabinet cooling form factor
  • 50 CFM airflow for instrument and system cooling

Specifications

No published specifications for this item yet.

Questions about this item

What is the maximum current draw of the BG0903-B049-P0S fan during sustained operation?

The fan draws 2.65 A at 12 V, so sustained use will be limited by the motherboard header or fan controller's current rating.

How much heat and noise does the BG0903-B049-P0S produce when running continuously?

The NMB double ball-bearing turbine moves 50 CFM at high speed; expect noticeable airflow noise and case-warming exhaust under all-day loads.

Which connector and voltage must my system already provide for this 4-wire blower?

A standard 4-pin PWM header supplying 12 V DC is required; the fan will not run on 5 V or 3-pin voltage control alone.

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