RokAjaxSearch
A ajax enhanced search module. It has support for Joomla search, as well as Google Web, Images, Videos and Blog search, amongst other configuration options.
RokNavMenu
A powerful menu extension that sits at the core of Voxel's Fusion Menu and Splitmenu navigation systems. It allows for menu specific params, which provides unprecedented menu control.
Voxel has integrated styling for a number of RocketTheme extensions, including RokSprocket, in all its layout modes. These are template-based styles to visually incorporate the addons.