The storage capacity of a USB or SD card is physically determined by the number of NAND flash memory chips soldered onto the device's printed circuit board (PCB).

: SData Tool and similar "cracks" modify the drive's firmware or File Allocation Table (FAT) to report a larger integer for total sectors.

: When a "spoofed" drive is used, the system believes it has extra space. However, once the physical limit is reached (e.g., a real 8GB drive spoofed to 16GB), the new data begins overwriting the old data at the start of the drive, effectively destroying the original files. 2. Security and Data Risks

The "SData Tool 2.0" is categorized by security experts and hardware technicians as . It utilizes a technique known as "fake capacity" or "spoofing" to trick an operating system into displaying a higher storage capacity than physically exists on the hardware. Using this tool typically results in immediate and permanent data loss. 1. Technical Analysis of Capacity Doubling Claims

: Forcing firmware modifications on low-quality flash controllers can lead to "bricking" the device, rendering it unreadable by any port.