![]() The ability to retain data is affected by the controller's firmware, internal data redundancy, and error correction algorithms. 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. Additionally, they are less vulnerable to electromagnetic interference than floppy disks, and are unharmed by surface scratches (unlike CDs). 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. 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 ).Ĭommon uses of USB flash drives are for storage, supplementary back-ups, and transferring of computer files. As of 2023, 2 TB flash drives were the largest currently in production. Since first offered for sale in late 2000, the storage capacities of USB drives range from 8 to 256 gigabytes (GB ), 512 GB and 1 terabyte (TB ). A typical USB drive is removable, rewritable, and smaller than an optical disc, and usually weighs less than 30 g (1 oz). A SanDisk Cruzer USB drive from 2011, with 4 GB of storage capacity A SanDisk Ultra Flair USB drive from 2020, attached to an HP laptop Transcend JetFlash from 2014 SanDisk 1 TB USB-C flash drive (2020 model) next to a 50 cent euro coinĪ USB flash drive (also thumb drive, memory stick, and pen drive/ pendrive elsewhere) is a data storage device that includes flash memory with an integrated USB interface. For the flash drive brand, see USB FlashCard. For the fictional space travel method, see Hyperspace.
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