SData Tool attempts to manipulate the firmware or controller settings of the USB drive. Essentially, it tells the drive to "overclock" its storage capacity or utilizes compression algorithms at the hardware level. It reallocates the sectors on the drive to report a larger size to the operating system than the physical memory actually contains.
The short answer is that . It does not physically or technologically add storage to your hardware. In computing, storage capacity is determined by the physical memory chips (hardware) inside the device. Software can organize or compress data, but it cannot create new physical space where none exists. How the "Doubling" Illusion Works sdata tool v100 double usb or sd card space better