Protoss Units

1. Probe 2. Zealot 3. Stalker

4. Sentry 5. Immortal 6. High Templar

7. Dark Templar 8. Archon 9. Observer

10. Warp Prism 11. Phoenix 12. Void Ray

13. Carrier 14. Mothership 15. Colossus

Reference: http://www.gamereplays.org/starcraft2/portals.php?show=index&name=starcraft-2-protoss&tab=6302849

This is fifteen units of Protoss, that have many functions are different. You can click on their names to view what the overview and stats.