Thermaltake AC-023-AN1NAN-A1 10-port Fan Hub (PWM) Specifications: LED: Blue LED Power Indicator Material: Plastic Power Connector Required: 1x SATA Fans Ports: 10 Fan Connector Supported: 3-pin / 4-pin (3-pin not supported for PWM Function) PWM Signal Input: 4-pin PWM Connector Weight: 90g Color: Black Dimensions (L x W x H): 81 x 44 x 18 mm (3.2 x 1.75 x .70)