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2. USB flash drive - Wikipedia

   en.wikipedia.org/wiki/USB_flash_drive

   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 ...

3. External storage - Wikipedia

   en.wikipedia.org/wiki/External_storage

   Such storage devices may refer to removable media (e.g. punched paper, magnetic tape, floppy disk and optical disc), compact flash drives (USB flash drive and memory card), portable storage devices (external solid-state drive and enclosured hard disk drive), or network-attached storage.

4. CompactFlash - Wikipedia

   en.wikipedia.org/wiki/CompactFlash

   CompactFlash IDE (ATA) emulation speed is usually specified in "x" ratings, e.g. 8x, 20x, 133x. This is the same system used for CD-ROMs and indicates the maximum transfer rate in the form of a multiplier based on the original audio CD data transfer rate, which is 150 kB/s.

5. USB Flash Drive Alliance - Wikipedia

   en.wikipedia.org/wiki/USB_Flash_Drive_Alliance

   The USB Flash Drive Alliance, founded in December 2003 by Samsung, Lexar Media, Kingston Technology and others, is a group of companies promoting the use of USB flash drives (also called "keydrives" and a variety of other names). [1] In 2003, according to the alliance, 50 million USB flash drives were sold in the US alone [citation needed].

6. Comparison of memory cards - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_memory_cards

   Packages the flash memory, currently soldered in shipping smartphones, into a removable card form factor. Uses the SCSI command set including queuing. The electrical interface makes use of differential signaling , which enables high bus speeds and robustness under noisy conditions and reduced pin count (compared to parallel bus alternatives ...

7. Lexar - Wikipedia

   en.wikipedia.org/wiki/Lexar

   USB FlashCard is a flash memory card format developed by Lexar, and announced on December 13, 2004. [ 15 ] There is a wide range of existing memory card formats such as SD , xD , and CompactFlash ; the major advantage of USB FlashCard is that the cards are in fact standard USB flash drives . [ 16 ]