RJ45 Female to M12 4 Pin Male Adapter | DFRobot FIT0854 | Core Electronics Australia
Female connector M12, 4-pin, straight, A-coded, 2 m | Cables / connectors | Baumer international
Elecbee M12 Y Connector 4 Pin Male to Female A Code Unshiled Adapter Waterproof Female to Male 4 Pin M12 Waterproof Connector : Amazon.com.au: Electronics
Universal M12 4 pin male connector - Canada Automation