Question about NZXT H9 All white

There's no need to buy a fan hub if you want to add fans, as this case already includes a 3-channel fan controller capable of managing multiple fans. The controller supports 12V DC, 3A per channel (36W total) and connects via SATA for power and internal USB 2.0 for data. The case can accommodate up to 10 fans, with 4 F Series 120mm fans already included.