Features: 1. The Violent Fan Adopts An All-Black ABS Shell And The Wind Speed Is Adjustable From 0 To 100%. It Has Two Power Input Interfaces: 5.5x2.1 Conventional Power Socket (12v Input) And Type-C Interface (5v Input, Power Bank Can Be Used). 2. It Has Two Power Input Interfaces: 5.5x2.1 Conventional Power Socket (12v Input) And Type-C Interface (5v Input, Power Bank Can Also Be Used). 3. Can Be Used To Drive 12v Server Violent Cooling Fans, The Wind Speed Is Adjustable From 0 To 100%. 4. Plug In The 12v 5.5x2.1 Round Port Power Supply Or The 5v Type-C Cable. 5. Turn The Adjustment Potentiometer, And The Wind Speed Will Change With The Potentiometer. Description: 1. Wind Speed: Wind Speed Is Adjustable From 0~100% 2. Power Supply Mode: Two Power Supply Modes, Regular Power Socket Or Type-C Input. 3. Input : Regular Power Socket Input 12v, Type-C Input 5v. 4. Voltage: 12V 5. Product Size: About 78 x 60 x 60 x 40mm 6. Power: 12W color: Black Material: ABS Package Contents: 1 x Fan Control Module Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.