Zyvpee BM4520-04W-B39 45x20mm 12V 0.12A 3-Pin Blower Case Fan

Compact 45×20 mm blower fan for tight spaces

This 12 V DC blower measures 45 by 20 mm and draws 0.12 A through a three-wire connector. It uses a ball bearing for reliable rotation and has no LED lighting. The unit is designed for equipment that requires focused airflow in a small footprint.

Fits builds needing directed exhaust through

The blower layout pushes air along a concentrated path rather than spreading it, so it suits enclosures with restricted intake or exhaust channels. A three-wire connection provides tachometer feedback for speed monitoring. No additional mounting hardware or controller is included.

Replaces the original NMB BM4520-04W-B39

When the factory fan wears out or becomes noisy, this direct-match unit restores the intended cooling performance. It is not suited for general case ventilation or radiators that need high static pressure across a broad area. Buyers needing larger airflow volumes or standard square mounting patterns should look elsewhere.