This trigger board is designed to be used in a V3 Gearbox with either the Backdraft Catalyst Fire Control Unit or used with Polar Star electronics and Catalyst electronics, depending on which version you select.
The Polar Star compatible trigger board is compatible with polar star electronics because it has the connectors for 2 polar star pigtail cables (not included)
The Catalyst wire harness connects directly to the solenoid, so these P* connectors are typically not placed on the trigger board unless requested, however I only have P* compatible trigger boards at the moment so this option is not currently available