4inch Fan:

Specifications:

Model: A18

Body Size: 149.8 x 96 x 146.5mm

Weight: 250g

Power Supply: DC 5V

Power Consumption: 1.0W

Package Size: 150 x 85 x 155mm

8inch Fan:

Specifications:

Model: A818

Body Size: 190 x 96 x 200mm

Weight: 416g

Power Supply: DC 5V

Power Consumption: 2.5W

Package Size: 242 x 113 x 245mm