Kaz Kadalashvili

The WordPress Category Archive Widget Plugin displays a monthly or yearly archive of posts for one specific category. It is very similar to the WordPress Archive except that it just displays one specific category’s posts, not all categories. It can be configured to either show a listing or a dropdown by month or year with or without post counts.

Category Archive Widget

Super Plugin

The Category Archive widget displays a monthly or yearly archive of posts for one specific category.

Hiroshi Sawai

This Plugin adds <code>Category Archives</code> to Widget. 
Added widget displays Category Archives links on category page. 
Only displays links on category page.

Category Archives

This Widget display Category Archives links on category page.

Category Archive Widget vs Category Archives