xCommander is a dual-pane file manager also packing many advanced file management features: Disk Space Analyzer, Duplicate File Finder and Archiver.
Dual-Pane File Manager: note that file operations (Copying, Moving, Deletion, Folder Creation, App Launching) require appropriate access right or Admin Privileges to be setup for the target file/folder.
Disk Space Analyzer: Scanning for any volumes and folders, and instant statistics for volumes (total/free space).
Duplicate File Finder: Grouping several volumes/folders in one scan.
Archiver: Unpacking for 7z, XZ, BZIP2, GZIP, TAR, ZIP, WIM, ARJ, CAB, CHM, CPIO, CramFS, DEB, DMG, FAT, HFS, ISO, LZH, LZMA, MBR, MSI, NSIS, NTFS, RAR, RPM, SquashFS, UDF, VHD, WIM, XAR and Z, and packing for ZIP, TAR, 7z.