What is this vertical slot in my pc case? : rbuildapc

The effect of slot dimensions and its vertical and horizontal position slot vertical Easy-to-use slide mechanism with deep funnel and backstop for quick wire changes • Smooth slot corners for reduced binding even in severe deflections • slot del sol Easy-to-use slide mechanism with deep funnel and backstop for quick wire changes • Smooth slot corners for reduced binding even in severe deflections •

slot bigo Uses of the vertical slot in orthodontic brackets