This adapter connects a Neuralynx HS-36 headstage amplifier to 30 channels of a Gray Matter Research 60 channel semi-chronic microdrive (SC60-1). Two adapters and two 32-channel headstage amplifiers are required to connect all 60 channels. There are 2 connectors on the Gray Matter Research drive that contain 30 signal channels each. These 30 channels are passed across the adapter to channels 1-30 on the HS-36 headstage amplifier. Two pin sockets are provided to connect a ground and one pin socket is provided to connect a reference signal.