Commander

From Hidden Frontier

A senior rank in Starfleet, a Commander is often placed in a position of direct authority, ranging from a Department Head to an Executive Officer or Commanding Officer of a starship or starbase.

This Starfleet rank is designated on the uniform collar by three gold pips.

Starfleet Commanders Appearing in Starship Intrepid and Hidden Frontier Productions

Starfleet Commander insignia, Command division	Starfleet Commander insignia, Operations division	Starfleet Commander insignia, Science division
Starfleet Commander insignia, circa 2280, Operations division head (shoulder)	Starfleet Commander insignia, circa 2280, Operations division (shoulder)	Starfleet Commander insignia, circa 2280, Medical division (shoulder)
Starfleet Commander insignia, circa 2280, Operations division head (sleeve)	Starfleet Commander insignia, circa 2280, Operations division (sleeve)	Starfleet Commander insignia, circa 2280, Medical division (sleeve)