RGB Case Fan Set, including 2 x 120 mm RGB Fans, a 17-Key RF Control, and a Hub which can support up to 8 Rosewill RGB Fans. To add more (up to 8 in total) Rosewill RGB Fans, please choose Rosewill RGBF-17003 (single pack RGB Fan only) which is the identical fan. Top of the line quality and super quiet case fans with only 23.2 dBA noise level. Standard size 120mm computer case fan with 1200 RPM speed and 41.9 CFM air flow. The PC case cooling fan has long life sleeve bearing.