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. ![]() As of March 2016, flash drives with anywhere from 8 to 256 gigabytes (GB ) were frequently sold, while 512 GB and 1 terabyte (TB ) units were less frequent. Since first appearing on the market in late 2000, as with virtually all other computer memory devices, storage capacities have risen while prices have dropped. It is typically removable, rewritable and much smaller than an optical disc. 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 2014Ī USB flash drive (also called a thumb drive in the US, or a memory stick in the UK & pen drive or pendrive in many countries) 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. ![]() Application Performance rating: The A1 or A2 ratings guarantee minimum levels of performance for running apps, but few phones or tablets can run apps from microSD cards anymore, or even have microSD card slots, so A ratings aren't that relevant."Jump drive" redirects here.This is especially important for cards used to run operating systems or programs (in a Raspberry Pi or one of the few Android phones that still let you run apps from microSD). Random speed: A microSD card used for operating systems, applications, or games needs to be fast at reading and writing small bits of data in random locations.Sequential writes are important for shooting video and high-resolution photos, and copying media to the card. They’re important for watching movies, loading game levels, or copying data from the card to your computer. Sequential speed: Sequential reads show how fast big chunks of data can be read from the card.It also helps to get a reliable card from a reputable manufacturer like Samsung, SanDisk, or Kingston to minimize the chances of something going wrong. Although we didn’t eliminate cards for having a shorter warranty, we noted ones that offered 10-year limited and lifetime limited warranties. Warranty: The longer the warranty, the better.All our picks are UHS-I we didn't test any UHS-II cards because few devices need them, and UHS-II cards are very expensive. ![]() You won’t get the full speed of UHS-II unless both device and card have support, because it requires an additional row of physical pins to achieve its extra speed. You should get a UHS-I bus card, unless the device you’re using specifies that it supports UHS-II. ![]()
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