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USB flash drive — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/USB_flash_drive
License (as archived): CC-BY-SA-4.0
Archived: 2026-10-15T16:22:27.110Z
SHA-256 of the archived text: 3e5fce0a5979c25402e35915b44271c42d0dfb576ea8afa227ae196ca52c447b
Stable URL of this page: https://metraipolis.com/documento/dc_7a054e55ee89

How to cite

USB flash drive — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/USB_flash_drive (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_7a054e55ee89 (Metraipolis archive dc_7a054e55ee89, sha256 3e5fce0a5979c25402e35915b44271c42d0dfb576ea8afa227ae196ca52c447b)

BibTeX

@misc{dc7a054e55ee89,
  title = {USB flash drive — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/USB_flash_drive},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_7a054e55ee89; sha256 3e5fce0a5979c25402e35915b44271c42d0dfb576ea8afa227ae196ca52c447b},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/USB_flash_drive. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

A USB flash drive (also known as a thumb drive) is a data storage device that includes flash memory with an integrated USB interface. A typical USB drive is removable, rewritable, and smaller than an optical disc, and usually weighs less than 30 g (1 oz). Since first offered for sale in late 2000, the storage capacities of USB drives have ranged from 8 megabytes to 1 terabyte (TB). As of 2024, 4 TB flash drives were the largest currently in production. Some allow up to 100,000 write/erase cycles, depending on the exact type of memory chip used, and are thought to physically last between 10 and 100 years under normal circumstances (shelf storage time). Common uses of USB flash drives are for storage, supplementary back-ups, and transferring of computer files. Compared with floppy disks or CDs, they are smaller, faster, have significantly more capacity, and are more durable due to a lack of moving parts. Additionally, they are less vulnerable to electromagnetic interference than floppy disks, and are unharmed by surface scratches (unlike CDs). However, as with any flash storage, data loss from bit leaking due to prolonged lack of electrical power and the possibility of spontaneous controller failure due to poor manufacturing could make it unsuitable for long-term archiving of data. The ability to retain data is affected by the controller's firmware, internal data redundancy, and error correction algorithms. Until about 2005, most desktop and laptop computers were supplied with floppy disk drives in addition to USB ports, but floppy disk drives became obsolete after widespread adoption of USB ports and the larger USB drive capacity compared to the "1.44 megabyte" 3.5-inch floppy disk. USB flash drives use the USB mass storage device class standard, supported natively by modern operating systems such as Windows, Linux, macOS and other Unix-like systems, as well as many BIOS boot ROMs. USB drives with USB 2.0 support can store more data and transfer faster than much larger optical disc drives like CD-RW or DVD-RW drives and can be read by many other systems such as the Xbox One, PlayStation 4, DVD players, automobile entertainment systems, and in a number of handheld devices such as smartphones and tablet computers, though the electronically similar SD card is better suited for those devices, due to their standardized form factor, which allows the card to be housed inside a device without protruding. A flash drive consists of a small printed circuit board carrying the circuit elements and a USB connector, insulated electrically and protected inside a plastic, metal, or rubberized case, which can be carried in a pocket or on a key chain, for example. Some are equipped with an I/O indication LED that lights up or blinks upon access. The USB connector may be protected by a removable cap or by retracting into the body of the drive, although it is not likely to be damaged if unprotected. Most flash drives use a standard Type-A USB connection allowing conne

Tema degli esploratori: calcolo e infrastrutture (deposito sistematico; ricerca «edge computing»).
Fonte: Wikipedia in inglese, voce «USB flash drive» — https://en.wikipedia.org/wiki/USB_flash_drive
Wikidata Q1647694 (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q1647694
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/USB_flash_drive?action=history).
Licenza: Creative Commons Attribuzione-Condividi allo stesso modo 4.0 (CC BY-SA 4.0) — https://creativecommons.org/licenses/by-sa/4.0/. Il riuso richiede attribuzione e stessa licenza.
Estratto dell'introduzione non modificato nel contenuto; revisione 1379187557, consultata il 2026-10-15T15:54:39.483Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: fd3bb17606ec6a03101b76b30fd15d38dd0b43c53bb2584652625d3b681eb671