| RTB-K1 | This option enables the I2C and SPI trigger and decoding functionalities. |
| RTB-K2 | This option enables the UART/RS-232/RS-422/RS485 trigger and decoding functionalities |
| RTB-K3 | This option provides the CAN/LIN trigger and decoding functionalities. |
| RTB-K36 | With this option you enable your RTB2 oscilloscope to make bodeplots up to 25 MHz. |