ITEM NAME:40mm 4cm 2 Pin 9 Blades Computer Chipset Cooling Fan DC 24V B8I4 40mm 4cm 2 Pin 9 Blades Computer Chipset Cooling Fan DC 24V B8I4 Improve the air flow, widely used for computer motherboard chipset, northbridge southbridge chipset, VGA Chipset, etc. Main Color : Black;Power : DC 24V Material : Plastic Product Name : Cooling Fan; Connector Type : 2 Pins Connector Mounting Hole Diameter : 3.5mm/ 0.14";Mounting Hole Center Distance : 31mm / 1.2"40mm / 1.6" Size : 4 x 4 x 1cm / 1.6" x 1.6" X 0.4" (L*W*H);Cable Length : 14cm / 5.5" Weight : 13g Package Content : 1x Cooling Fan Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.