PCManFM is the default file manager in LXDE, the Lightweight X11 Desktop Environment. Its goal is to offer a fast execution speed, providing in the same time enough functionality for a file manager of its class.
PCManFM has a typical interface for a GTK file manager, which looks a lot like Thunar, the default file manager used by Xfce, reviewed yesterday here. By default it has a left side panel which provides access to all the important locations in the system, including unmounted partitions. I noticed that PCManFM will also automatically inherit Nautilus' bookmarks and show them in the Bookmarks menu and in the side panel. The toolbar offers buttons for the most popular actions (Back, Forward, Up, Reload and Home) as well as a location bar, accessible via Ctrl+L. The side panel can be configured to show location shortcuts or the classic tree view.
rest here