The HS-27 mini is a lighter version of the HS-27. This preamplifier headstage provides 27 channels of unity gain amplification including 24 electrode channels, three reference, and two differential stimulus channels. It is designed to connect to the EIB-27 family of electrode interface boards.

The HS-27 Mini-LED is a modified version of the HS-27-Mini which includes mounts for colored LED's used with the Cheetah Video Tracker.

Tethers for these headstages are sold separately.