The Aquacomputer Poweradjust 3 is a 5.25'' bay USB and Aquabus fan and pump controller with temperature monitoring. It can be used in conjunction with the Aquacomputer Aquaero 6 XT Fan Controller (see my page for this model or both models in a collection).
Includes 3 Poweradjust modules with heatsinks.
Dimensions are based on online images and specs.