Lamptron TC20 PCI RGB fan and LED controller - silver [LULS-314] from WatercoolingUK
NeweggBusiness - Enlabs PCIFANCO4S 8 Channel 3-pin CPU / Case Fan speed Controller w/ OFF Switch,8 Way 12V/1.5A Max. 3pin Fan RPM Speed Reduce Regulator w/ PCI Slot Cover - Power by SATA
Evercool Twister PCI and Front Panel Fan Controller - Shiny Hardware