What is the difference between X3R32/64, X3SR, and X6R128 headstages?

What is the difference between X3R32/64, X3SR, and X6R128 headstages?

The X3R32/64 is a recording-only headstage with a base footprint of about 8.5x8.5mm and includes a built-in accelerometer.


The X3SR32 is the stim-record headstage, with a base footprint of about 8.5x8.5mm. The SR X-Headstages do not support accelerometers.


The X6R128 is a recording-only headstage with a base footprint of about 10x10mm and includes a built-in accelerometer.