The Profile Sidebar module is used only on the User Profile Page - /member/x-username (where x is the userid and username is the username of the user whose profile is being viewed). It is a hidden module, so it does not show up on the Module List. Hidden modules are specific to certain pages and may only be used on that page. You also may not delete it from this page.
There are no options for this module, it simply is used to show the user’s avatar, username, usertitle, and various other information about the user as shown below.