WpBean's filterable portfolio WordPress plugin comes with a beautiful gallery slider and quick view lightbox. Its style is highly customizable.
Easy Digital Downloads Slider adds a responsive download items slider. Highly customizable. It will help you to raise your conversion rate.
WPB woocommerce product accordion plugin pro version. With lots of cool features.
Best Logo Slider WordPress Plugin shows sliders of sponsors/clients/partners logos along with title, short description and website URL etc.