Sunon 80x80x25mm fan (ball bearing, 36cfm), with 3-pin connector. Makes an excellent CASE fan, if you have a spare 3-Pin fan header on your motherboard. With mounting screws.

BALL BEARING

Dimension: 80x80x25 mm
Speed: 2900 rpm
Air Flow: 39 MAX CFM
Noise Level: 32 dBA
Max Pressure: 0.17 Inch H2O
Rated Voltage: 12 V DC