OEM Industries R128015SH 8015 12V .32A 3-Pin 4-Hole CPU Cooler

OEM Industries R128015SH 8015 12V .32A 3-Pin

This transparent frameless cooler is a direct replacement fan for specific legacy graphics cards including ASUS GTS250, HD4870, HD4850, GTS450, GTX260, 4850, 5830, 5850, 9600GSO and 9800GT models. It draws 12V at .32A through a standard 3-pin connector and mounts using four holes spaced at 43mm intervals. The unit suits repair technicians restoring older hardware to working order. It is not for builders seeking modern socket compatibility or PWM speed control.

Sustained load behaviour of the 75mm diameter fan

The 75mm diameter fan operates at a fixed 12V .32A input without PWM regulation so rotational speed remains constant regardless of thermal demand. Under continuous load the airflow stays steady rather than ramping up, which limits peak cooling capacity compared to variable-speed designs. Acoustic output therefore stays uniform during extended gaming or compute sessions. The frameless construction reduces weight but offers no vibration damping beyond the mounting points.

Practical limits of the 3-pin 4-hole mounting

The 3-pin connector supplies power and tachometer feedback only; it cannot accept PWM duty-cycle signals from a modern motherboard or GPU header. Four mounting holes on a 43mm square pattern restrict installation to the listed legacy ASUS boards; other coolers or cards with different hole spacing will not align. The transparent blades and frame provide no integrated LED illumination. This interface cannot support voltage control beyond the fixed 12V rail.