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.

    240 Products showing for I/O Expanders

    Microchip
    16
    I2C
    28
    SSOP
    400kHz
    Surface Mount
    5.5 V
    2 V
    NXP
    8, 8
    -
    16, 16
    TSSOP16, TSSOP16
    400 kHz, 400 kHz
    -
    -
    -
    NXP
    8, 8
    -
    16, 16
    SO16, SO16
    100 KHz, 100 KHz
    -
    -
    -
    Texas Instruments
    -
    I2C, SMBus
    24
    SOIC
    -
    Surface Mount
    -
    -
    Microchip
    16
    I2C
    28
    SSOP
    1.7MHz
    Surface Mount
    -
    -
    NXP
    -
    I2C
    16
    TSSOP
    -
    Surface Mount
    -
    -
    DiodesZetex
    8
    I2C
    16
    TQFN
    -
    -
    -
    -
    Microchip
    16
    I2C
    28
    SSOP
    10MHz
    Surface Mount
    5.5 V
    1.8 V
    Microchip
    16
    SPI
    28
    QFN
    10MHz
    Surface Mount
    5.5 V
    1.8 V
    DiodesZetex
    8
    I2C
    16
    TQFN
    -
    -
    -
    -
    DiodesZetex
    8
    I2C
    16
    TQFN
    -
    -
    -
    -
    Microchip
    16
    I2C, Serial
    28
    SPDIP
    5MHz
    Through Hole
    -
    -
    Texas Instruments
    8
    I2C, SMBus
    16
    PDIP
    100kHz
    Through Hole
    -
    -
    DiodesZetex
    16
    I2C
    24
    TQFN
    -
    -
    -
    -
    DiodesZetex
    48
    I2C
    56
    TQFN
    -
    -
    -
    -
    DiodesZetex
    48
    I2C
    56
    TQFN
    -
    -
    -
    -
    Texas Instruments
    16
    I2C, SMBus
    24
    WQFN
    100kHz
    -
    -
    -
    Maxim Integrated
    16
    Serial-2 Wire
    24
    SSOP
    400kHz
    Surface Mount
    5.5 V
    2 V
    DiodesZetex
    16
    I2C
    24
    TQFN
    -
    -
    -
    -
    DiodesZetex
    16
    I2C
    24
    TQFN
    -
    -
    -
    -
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