ASUS Notebook A3 A3E A3A A8 CPU Fan KFB0505HHA 4-Pin Header with approximately 2 " (51mm) power line 3 Mounting Pins Distance: 1 3/4" (~44.5mm), 2" (~51mm) and 2 1/8" (~54mm) Fan Dimension (Diameter x Height) is approximately 2 1/16" (52mm) x 1/2" (13mm)