This chassis cooling fan at 12V 12cmX12cm size is perfect to keep your computer cool with optimum temperature. It provides fresh cool air to your computer, keeping it cooler and maximizing its life of your machines. Features: Brushless DC cooling fan Computer cooling fan to help pushing the hot air out of your computer when mounted on the back Also suitable to be used for ventilation in some water dispencer or machine to draw in fresh air Rated Voltage : DC 12V Rated Current : 0.16A External Material : Plastic 7 Blades Size : 12cm X 12cm X 2.5cm Mount Hole Diameter : 4.5mm Hole Distance (Center to Center) : 10.5mm 2 connectors designs : 1 X 4 Pin female connector 1 X 4 pin male connector Color : Black Package Content : 1 X Casing Fan 12cmX12cm (Note : Photo attached is for reference only, it may be slightly varied in items of colour, shape from the actual item delivered from time to time) We also carry cooling fan at size : 5cm, 6cm, 8cm