AEM CD-7s are designed to accept channels from CAN bus connections—and two CAN bus channels are included so that they can receive and collect data from AEMnet-enabled devices. Seven ultra-bright LEDs span the top of the display housing for rpm and shift light indication. You can program them to ascend in specific increments based on rpm range, and flash when it's time to shift. Brightness is also programmable on the fixed color LEDs.

Two large buttons are included on the face of the display, allowing easy page changing and memory resetting—even with driving gloves on. These button functions are duplicated on the rear connector, allowing you to mount remote buttons on the steering wheel, if desired. Two additional programmable LEDs are located above the toggle buttons on the sides of the housing. AEM offers the CD-7 as "display only" (non-logging) or with built-in logger (CD-7L). The units are available in either a cast aluminum or carbon fiber composite housing—with sealed connectors on the rear and anti-vibration mounts.