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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.

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    192 Products
    Price
    Brand
    Number of I/O Channels
    Interface
    Number of Pins
    Package Type
    Clock Frequency
    Mounting Type
    Maximum Supply Voltage
    Minimum Supply Voltage
    Product Details
    Price
    Brand
    Number of I/O Channels
    Interface
    Number of Pins
    Package Type
    Clock Frequency
    Mounting Type
    Maximum Supply Voltage
    Minimum Supply Voltage
    Microchip
    16
    I2C, Serial
    28
    SPDIP
    5MHz
    Through Hole
    -
    -
    Microchip
    16
    I2C, Serial
    28
    SPDIP
    5MHz
    Through Hole
    -
    -
    Microchip
    8
    I2C, Serial
    18
    PDIP
    5MHz
    Through Hole
    -
    -
    Microchip
    8
    I2C, Serial
    18
    PDIP
    5MHz
    Through Hole
    -
    -
    Microchip
    16
    I2C, Serial
    28
    SOIC
    5MHz
    Surface Mount
    -
    -
    Microchip
    16
    I2C, Serial
    28
    SOIC
    5MHz
    Surface Mount
    -
    -
    Texas Instruments
    8
    I2C, SMBus
    16
    PDIP
    100kHz
    Through Hole
    -
    -
    Texas Instruments
    8
    I2C, SMBus
    16
    PDIP
    100kHz
    Through Hole
    -
    -
    NXP
    8
    I2C
    16
    SOIC
    100kHz
    Surface Mount
    5.5 V
    2.3 V
    NXP
    8
    I2C
    16
    SOIC
    100kHz
    Surface Mount
    5.5 V
    2.3 V
    NXP
    -
    I2C, SMBus
    8
    SOIC
    400kHz
    Surface Mount
    -
    -
    NXP
    -
    I2C, SMBus
    8
    SOIC
    400kHz
    Surface Mount
    -
    -
    Microchip
    16
    SPI
    28
    PDIP
    10MHz
    Through Hole
    5.5 V
    1.8 V
    Microchip
    16
    SPI
    28
    PDIP
    10MHz
    Through Hole
    5.5 V
    1.8 V
    Microchip
    16
    Serial-SPI
    28
    SOIC
    5MHz
    Surface Mount
    -
    -
    Microchip
    16
    Serial-SPI
    28
    SOIC
    5MHz
    Surface Mount
    -
    -
    Microchip
    8
    I2C
    20
    QFN
    1.7MHz
    Surface Mount
    5.5 V
    1.8 V
    Microchip
    8
    I2C
    20
    QFN
    1.7MHz
    Surface Mount
    5.5 V
    1.8 V
    Microchip
    16
    Serial-SPI
    28
    SSOP
    5MHz
    Surface Mount
    -
    -
    Microchip
    16
    I2C
    28
    SSOP
    1.7MHz
    Surface Mount
    -
    -
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