5.25-inch Chromatic Windmill Fan Speed Controller (Black) 5.25-inch Chromatic Windmill Fan Speed controller General Features: Black casing Fits 5.25-inch drive bay Calendar functions 3 temperature sensors Controls up to 7 fans Hard disk indicator with flashing signal for hard disk read and write Colorful LCD display Calendar Features: Display in year, month, date and time Set for the years from 2002 to 2009 Time shown in 12-hour format