The unit is an aluminum “U” type housing that fits any 5.25” bay, and my particular one matches with my silver case very nicely. One of the things I like about it is that unlike the Sunbeam rheobus I reviewed awhile back, the Enermax model does not eat the entire 5.25” bay. Obviously you won’t be able to use the bay for a CD-Rom drive, but fans, or a 3.5” hdd can be mounted inside, which is nice if you have more hard drives than 3.5” bays.
Hooking up your CPU or case fans to the Enermax unit could not be simpler. You hook up the unit to a spare molex connector on the PSU, then, connect all of your fans to the unit. There are six 3-pin connectors, two of which support RPM readings on the front of the unit. There are also two temperature probes. The unit has an alarm which will sound if one of the two monitored fans fails, or if the temperature reading of one of the probes goes beyond a limit you set.
The rheostats on the Enermax controller adjust output voltage from around 6 to 12V, so for most fans the minimum setting will be about 50% rpm, with the maximum setting at 100%. I used the first monitored rheostat to control the fan on my Zalman CNPS7000Cu. At the minimum setting fan speed was around 1250 rpm, and at maximum, it hovered between 2500 and 2600 rpm. For my 80mm case fans, adjustable speeds were 1500 to 3000 rpm. Ultimately it will depend on the rated speed of the fan you are using.
This picture was taken without the aid of a flash, to show you the one weakness that the Enermax panel has. The LCD display has very poor contrast, so even with the backlight, the numbers are very difficult to see in the dark.
