Based on this product's specifications, here are some alternatives and similar models
Cooler Inter-Tech K-666 Processor Cooler 6 cm
Summary description:
The Inter-Tech K-666 Processor Cooler features a compact design with a 6 cm fan diameter. It operates at a rotational speed range of 1600 to 5000 RPM, providing a maximum airflow of 26.45 CFM. The noise level varies from a quiet 13.8 dB at low speed to 38.7 dB at high speed, making it suitable for various environments. With a voltage of 12 V, its dimensions are 90.7 mm in width, 85 mm in depth, and 64 mm in height, ensuring compatibility with most setups.