The RTS KP 412 keypanel fits in a standard 19” rack and is one rack-unit high. It has 12 keys, each key consisting of one (1) listen button and one (1) talk button. Ten keys are used for intercom talk and listen and two (2) keys are for call waiting response. In addition, there are two (2) encoders. One (1) encoder is used for Headset, Microphone, Auxiliary Input, and Matrix In volume adjustment. The other encoder knob is used for menu selection. The KP KP 412 key panel has a standard numerical keypad with four (4) extra keys: Mic Mute, User Assignable, Page Up, and Page Down.

The KP 412 has a 4-character display panel. The KP 412 key panels have added significant new features such as digital signal processing (DSP). The KP 412 key panels also offer a custom design LCD display with support for 16 x 16 Kanji, Katakana, Hiragana, and English characters. The KP 412 keypanels are made of pressed aluminum/metal and feature state of the art audio processors and drivers. There are three (3) different keypanel models to choose between: Desktop, Rack Mount, and Rack Mount-Lever Key.