Rosewill RFX-100B 90mm PCI Slot Case Cooler Operating at 2000 RPM, the Rosewill RFX-100B delivers strong air flow of up to 35.12 CFM for impressive levels of heat dissipation The PCI slot exhaust system blower works at a whisper-quiet 25.24dBA Dimensions: 90.5 x 100 x 22mm