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  2. Comparison of memory cards - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_memory_cards

    Slim and small (20 mm × 25 mm × 1.78 mm) but slower read/write, no wear-leveling controller, up to 2 GB [8] Type H 2005 2 GB Slim and small (20 mm × 25 mm × 1.78 mm) and swifter, no wear-leveling controller, up to 2 GB [8] XQD card: Sony & Nikon Standard 2011–2012 >2 TB High-capacity, high-speed standard using PCIe as interface

  3. SD card - Wikipedia

    en.wikipedia.org/wiki/SD_card

    Unlocked and locked SD cards Sony 64 GB SF-M Tough Series UHS-II SDXC Memory Card is one of the few cards in the market without a sliding tab on the write protect notch. Most full-size SD cards have a "mechanical write protect switch" allowing the user to advise the host computer that the user wants the device to be treated as read-only.

  4. Memory Stick - Wikipedia

    en.wikipedia.org/wiki/Memory_Stick

    Memory Stick Micro. In a joint venture with SanDisk, Sony released a new Memory Stick format on February 6, 2006. The Memory Stick Micro (M2) measures 15 × 12.5 × 1.2 mm (roughly one-quarter the size of the Duo) with 64 MB, 128 MB, 256 MB, 512 MB, 1 GB, 2 GB, 4 GB, 8 GB, and 16 GB capacities available. The format has a theoretical limit of 32 ...

  5. Memory card - Wikipedia

    en.wikipedia.org/wiki/Memory_card

    The basis for memory card technology is flash memory. [2] It was invented by Fujio Masuoka at Toshiba in 1980 [3] [4] and commercialized by Toshiba in 1987. [5] [6] The development of memory cards was driven in the 1980s by the need for an alternative to floppy disk drives that had lower power consumption, had less weight and occupied less ...

  6. USB flash drive - Wikipedia

    en.wikipedia.org/wiki/USB_flash_drive

    Three different Micro Center-branded digital media, showing a USB flash drive, an SD card, and a Micro-SD card, all having a capacity of 8 GiB, next to a U.S 5-cent coin for size comparison. Flash memory cards, e.g., Secure Digital cards, are available in various formats and capacities, and are used by many consumer devices. However, while ...

  7. 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.