Bitspower PWM FAN Multi Function HUB Features: 1. Support 10 Fans with PWM Function. 2. Direct control from BIOS or Motherboard software, when the hub links to the Motherboard. 3. Power supply from SATA Connected. 4. LED Light for Power On. 5. Separate Capacitor to provide more stable current for PWM Fans. 6. Easy to Install in Chassis.