Welcome to our store！</br> 1、[Low Loss] This speed governor adopts brand new materials, with low loss, low heat generation and it also has a long service life. 2、[8 Way 4 Knob Design] The speed governor can be connected to 8 way fans, 4 knobs control the speed, and one knob controls two fans. 3、[Excellent Performance] The accuracy adjustable resistance has high accuracy, excellent performance, and the speed can be adjusted at will. 4、[Speed Governor Design] The cooling fan hub is equipped with a speed control chip, which can adjust the speed according to your needs. 5、[Simple operation] With simple operation, just plug and play, there are SATA interface and IDE interface 2 attributes are available. <p class="wang-edit-text"><p class="wang-edit-text">Item Type: Fan Hub Material: PCB Size: Approx. 120 x 65 x 18mm / 4.7 x 2.6 x 0.7in Power Supply Voltage: 0-12V Connectable Fans: 8 Adjustment Method: 4 Manual Adjustment Knobs Installation Position: PCI Position of PC Case <style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style> 1 X Fan&nbsp;Hub&nbsp;1 X Screw Satisfaction - Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactoryaftersalesservice</br>