What is the CSA/TDS8000 series equivalent to the SD20?

What is the CSA/TDS8000 series equivalent to the SD20?

There is no equivalent electrical sampling module for the CSA/TDS8000-series.

The SD20 is a single channel 20Ghz, loop through sampling head. The SD20 was un-terminated and allows the signal to be passed through the sampling head without the need for a power divider (to provide a signal to the trigger input).