Features: 1. Product power supply: USB5V (directly connected to the host through the attached USB cable) 2. Product current: If a for is charging, the maximum charging current for a single controller can reach 800MA, and the average charging current for two controllers at the same time can reach 400MA for each controller. (no fan turned on) 3. The maximum speed of the fan: 5000±10%PRM, the maximum air volume: 12.6 CFM. 4. Charging time: 2.5-3 hours (both handles are at the same time) 5. FOR Slim Pro Universal Fan Base Bracket Description: Applicable Products: for /SLIM/PRO Model: for Scope Of Application: Bracket size: 21.5 x 7.5 x 26.5cm Material: ABS colour: black Package Contents: 1 x Cooling Base Bracket 1 x Data Cable 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.