# Event markers

- [About event markers](/emotivpro-v3/event-markers/about.md)
- [Baseline markers](/emotivpro-v3/event-markers/baseline-markers.md)
- [Serial port markers](/emotivpro-v3/event-markers/serial-port-markers.md)
- [Keystroke markers](/emotivpro-v3/event-markers/keystroke-markers.md)
- [USB markers](/emotivpro-v3/event-markers/usb-markers.md)
- [EMOTIV Extender triggering (Legacy – No Longer Supported)](/emotivpro-v3/event-markers/emotiv-extender-triggering.md)