The 223e comprises two components: A 3-panel-unit tactile surface (the Multi-Dimensional Kinesthetic Input) for generating user control data, and the single-panel Tactile Input Port module, which provides edit / programming control for the tactile surface, and houses the control voltage outputs and the controls for the built-in arpeggiator.
The tactile surface features an ergonomic array of 27 velocity- and pressure-sensing keypads, fourteen of which respond to location in one or two dimensions. Pressure sensitivity ranges from feather-weight to several pounds. Arranged into multiple user-defined groups ranging in size from 1 to 25, the keypads can produce a wide array of user-programmed control voltages. The surface can be mounted in three panel spaces in a 200e-series cabinet (usually in the lowest boat, for playing convenience), or independently mounted in a 201e-3 Passive Frame.