Delta Electronics KSB05105HB BJ75 4‑Wire Server Cooling Fan — DC 5V 0.32A

Delta Electronics KSB05105HB (BJ75) server cooling fan. Runs on DC 5V and draws 0.32A, featuring a 4-wire (4-pin) connector for PWM speed control and tachometer feedback. Designed as a direct replacement for server cooling applications to restore proper airflow and thermal performance in servers and related equipment.