Our microdrives all use 34 pin Omnetics connectors (32 channels plus two reference channels).  Both reference channels are connected to a small female pin on the PCB.  This pin is grounded to the animal through the titanium chambers or a separate ground connection must be established if a plastic chamber is used.  Please view our schematics for more detail:

SC32 schematic

SC96 schematic

We provide headstage adapters for Tucker Davis Technologies (TDT for GMR 32/96 channel systems or TDT for GMR LS Systems), Neuralynx and Multi Channel Systems.

Blackrock provides an adapter for their headstages.

Intan, Open Ephys, Plexon, Ripple, TBSI, and Bio-Signal Technologies all use a 36 pin Omnetics input connector on their headstages.  Those headstages can be plugged directly into our microdrives and do not require an adapter.(Wehave a pdf illustrating this)

On larger channel count microdrives, it may be useful to permanently connect a jumper to each connector.  This gives more mounting options for the headstages and mitigates risk from repeatedly unplugging the connector from the microdrive PCB.