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  2. Comparison of memory cards - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_memory_cards

    Card family Standards organizations Varieties Entry date Maximum commercially available capacity Picture [1] Main features CompactFlash: SanDisk: I 1994 512 GB (CF5 128*2 50 bytes) Thinner (3.3 mm), flash only, now up to 512 GB, although standard goes up to 128 PB since CF 5.0 [2] II Thicker (5.0 mm), older flash, but usually Microdrives, up to ...

  3. Memory card reader - Wikipedia

    en.wikipedia.org/wiki/Memory_card_reader

    The number of different memory cards that a multi card reader can accept is expressed as x-in-1, with x being a figure of merit indicating the number of memory cards accepted, such as 35-in-1. There are three categories of card readers sorted by the type and quantity of the card slots: single card reader (e.g. 1x SD-only), multi card reader (e ...

  4. Chip Authentication Program - Wikipedia

    en.wikipedia.org/wiki/Chip_Authentication_Program

    In all three modes, the CAP reader asks the EMV card to output a data packet that confirms the cancellation of a fictitious EMV payment transaction, which involves the details entered by the user. This confirmation message contains a message authentication code (typically CBC-MAC / Triple DES ) that is generated with the help of a card-specific ...

  5. Point-to-point encryption - Wikipedia

    en.wikipedia.org/wiki/Point-to-point_encryption

    Point-to-point encryption (P2PE) is a standard established by the PCI Security Standards Council.The objective of P2PE is to provide a payment security solution that instantaneously converts confidential payment card (credit and debit card) data and information into indecipherable code at the time the card is swiped, in order to prevent hacking and fraud.

  6. MIFARE - Wikipedia

    en.wikipedia.org/wiki/MIFARE

    This makes it possible to use the same card with both readers that can read MIFARE Classic products (with sectors protected by 48-bit CRYPTO1 keys, "Security Level 1") and readers that can read MIFARE Plus products (with sectors protected by 128-bit AES keys, "Security Level 3"). This feature is intended to make it easier to gradually migrate ...

  7. CFexpress - Wikipedia

    en.wikipedia.org/wiki/CFexpress

    The cards have a XQD form factor and use two PCIe 3.0 lanes. They come in 32 GB, 64 GB, 128 GB and 256 GB capacities. More details on Delkin's CFexpress cards were revealed in February 2018. [9] [10] The cards should be able to be read from and written to with respectively up to 1.6 GB/s and up to 1.0 GB/s benchmarked with CrystalDiskMark 5.2.1 ...

  8. USB flash drive - Wikipedia

    en.wikipedia.org/wiki/USB_flash_drive

    Flash memory cards, e.g., Secure Digital cards, are available in various formats and capacities, and are used by many consumer devices. However, while virtually all PCs have USB ports, allowing the use of USB flash drives, memory card readers are not commonly supplied as standard equipment (particularly with desktop computers).

  9. 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.

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