USBstick

USBStick is a portable data storage device based on flash memory and connected via a USB interface. It is commonly known as a USB flash drive, USB stick, or thumb drive. It operates as removable mass storage, drawing power from the USB bus and appearing as a disk to the host computer. A small controller coordinates flash management and data integrity.

Construction and features: Most USBSticks combine NAND flash with a compact controller. Many provide encryption and secure erase, while others emphasize low cost or high capacity. Wear leveling and error correction extend the device’s usable life by distributing writes and correcting errors.

Usage: USBSticks are used to transport files between devices, back up documents, or serve as portable media libraries. They can host portable applications or bootable tools. Security settings on hosts and on the device itself influence mounting behavior, autorun policies, and the ability to auto-start software.

Capacity and performance: Capacities range from a few gigabytes to several terabytes. Consumer ranges commonly include 16 to 512 GB, with larger models announced. Performance depends on the USB standard (2.0, 3.0/3.1, USB4) and the flash controller; real-world speeds are often lower than theoretical maxima.

Reliability and history: Data remains stored without power, but flash wear and physical damage can cause loss. Backups are advised. USBStick devices were introduced in the early 2000s and quickly grew in capacity and speed as USB standards evolved.