Keysight Technologies DAQM903AProduct Attribute Attribute Value Number of Channels 20 Power Rating 50 W Series DAQ970A Series Type Switch Module Overview Keysight DAQ970A Series DAQM903A 20 Channel Actuator GP Switch Module for DAQ970A: The Keysight DAQM903A is a general purpose switch module for the DAQ970A Data Acquisition System. It has 20 independent single pole, double throw (SPDT) relays and is used to cycle power to products under test, control indicator and status lights,