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Small black 4 cm server fan with four wires and double ball bearing

Ruth's sister

Ruth's sister DBPH0428B4H 4028 24V .50a internal power cable

SKU CH-KQ9E-F7SZ0

A 4 cm server chassis fan with double ball bearings running on 24 V and 0.50 A

  • Double ball bearing extends fan lifespan
  • 24 V / 0.50 A suits server chassis power
  • 4028 form factor fits 4 cm mounting slots
  • DBPH0428B4H model ensures correct replacement part

4 cm 24 V server chassis fan

The AVC DBPH0428B4H is a 40 mm by 28 mm double ball bearing fan rated for 24 V and 0.50 A. It is built for server and industrial chassis that require reliable airflow in a compact frame. Buyers needing a different voltage or a larger frame will need another model.

Two-wire power lead installation

The fan connects with a standard two-wire lead that plugs into a 24 V header or terminal block. Polarity must be observed to avoid damage. The 40 mm mounting holes suit common 4028 cut-outs, but the 28 mm thickness may not fit every slim enclosure.

Highlights

  • Double ball bearing extends fan lifespan
  • 24 V / 0.50 A suits server chassis power
  • 4028 form factor fits 4 cm mounting slots
  • DBPH0428B4H model ensures correct replacement part

Specifications

No published specifications for this item yet.

Questions about this item

How can I confirm the 24V .50a fan is running correctly after installation?

The double ball bearing design should spin smoothly at 24V .50a with no rattling; verify RPM in BIOS or monitoring software matches expected speed for the 4028 model.

What comes with the DBPH0428B4H and do I need a separate power connector?

The package includes the 4cm 24V .50a server chassis fan only; a compatible 3‑pin or 4‑pin motherboard header or fan controller must be supplied separately.

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