Best Buy: NZXT Sentry Mix 2 Fan Controller Matte Black AC-SEN-MIX2-M1
NZXT Sentry LX - Bjorn3D.com
NZXT Sentry II Full System Fan Controller - Controls Up To 5 Fans, 5.25 Touch Screen Interface, F & C Temperature Display, Max of 10 Watts per Channel - SEN2-001 at TigerDirect.com