I O Expanders | RS
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    I/O Expanders

    I/O expandersare a type of computer hardware that allows more than one device to connect to a single port on a computer.

    How do I/O expanders work?

    The expander connects to a single spot, but has multiple connections for other devices. Such expanders offer the advantage of allowing more devices of a particular port type to be used at the same time. This commonly used with USBs and ethernet ports.

    Types of I/O expanders

    There are two main types of I/O expanders: internal and external.

    Internal expanders

    These have a connection inside the computer, typically on the motherboard, and the only part the user can see is the expansion plate which houses the ports to which they can connect more devices.

    External expanders

    An external expander plugs into an existing port introducing multiple new places to connect. When not part of a computer system, these devices are commonly known as splitters.

    199 Products showing for I/O Expanders

    NXP
    16
    I2C
    24
    SSOP
    400kHz
    Surface Mount
    5.5 V
    2.5 V
    NXP
    2
    I2C
    8
    SO8
    -
    -
    -
    -
    Texas Instruments
    -
    I2C
    16
    SOIC
    -
    Surface Mount
    -
    -
    Microchip
    16
    I2C
    28
    SOIC
    10MHz
    Surface Mount
    5.5 V
    1.8 V
    Texas Instruments
    16
    I2C, SMBus
    24
    WQFN
    100kHz
    -
    -
    -
    Texas Instruments
    8
    I2C
    16
    PDIP
    100kHz
    -
    -
    -
    Microchip
    16
    Serial-SPI
    24
    QFN
    10MHz
    Surface Mount
    5.5 V
    1.8 V
    Microchip
    8
    I2C, Serial
    18
    SOIC
    5MHz
    Surface Mount
    -
    -
    NXP
    16
    I2C, SMBus
    24
    TSSOP
    400kHz
    Surface Mount
    5 V, 5.5 V
    2.3 V
    Microchip
    16
    I2C
    28
    SOIC
    10MHz
    Surface Mount
    5.5 V
    1.8 V
    NXP
    16
    I2C
    24
    TSSOP24
    -
    -
    -
    -
    Microchip
    8
    SPI
    18
    SOIC
    10MHz
    Surface Mount
    -
    -
    Microchip
    16
    Serial-SPI
    28
    SSOP
    5MHz
    Surface Mount
    -
    -
    Phoenix Contact
    -
    -
    44
    QFP
    -
    -
    -
    -
    NXP
    16
    I2C, SMBus
    24
    TSSOP
    400kHz
    Surface Mount
    5 V, 5.5 V
    2.3 V
    NXP
    8
    I2C
    16
    SO16
    -
    -
    -
    -
    onsemi
    8
    I2C
    16
    UMLP
    400kHz
    Surface Mount
    3.6 V
    1.65 V
    NXP
    2, 2
    -
    10, 10
    TSSOP10, TSSOP10
    1 MHz, 1 MHz
    -
    -
    -
    Microchip
    16
    SPI
    28
    SOIC
    10MHz
    Surface Mount
    5.5 V
    1.8 V
    Microchip
    8
    I2C
    20
    SSOP
    1.7MHz
    Surface Mount
    5.5 V
    1.8 V
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