Supports up to 4 Independent Fans FH-04 enables users to greatly expand cooling capability within the chassis and enjoy enhanced system performance. FH-04 is able to extend up to 4 fans and compatible with 3-pin/4-pin Fans. PWM Function Design Each port has its own PWM function and the fan speed can be adjusted at the same time, but only the speed of Fan 1 can be identified by the system. Easy to install FH-04 is easily installed by included double-sided adhesive. Specification : Product Dimension 68×13×17.5 mm Net Weight 22 g Port Type 4-pin×1 Extension Port 4-pin×4 Length of HUB Strip Cable 550 mm Mounting Method Double-faced Adhesive EAN 6933412795995 P/N DP-F04PWM-HUB