ImageUSB is a free utility and tools software by Passmark. The software enables image writing for multiple USB devices, as well as direct imaging between them. It is designed for efficiently making USB file copies in exact bit-level. It also allows writing of ISO file, but users must remember that making CD ISO images have a different file format. Direct imaging of CD files to USB could prevent the USB drive to work properly in every operating system. It might require a reformat to recover the USB. This software works with PassMark OSForensics™ for installing OSFClone to a USB device. Any free space inside the USB are retained, as well as components like Master Boot Record (MBR). Bootable USB devices are open for duplication. The software is capable of reformatting a USB device, drives, and MBR and GPT entries for wider disk space.