Model: 2004KL-04W-B59 Bearing: double ball Size: 50x50x10 Rated voltage: 12V Current: 0.14A Speed: 6500 Interface: Motherboard 3 pin (does not support speed-support signal stop alarm) Line length: 12CM (line is relatively short, there is a need to use in the shop to purchase extension cords) Applicable Chassis South Bridge. North Bridge cooling, auxiliary cooling, high reliability server applications.