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B&B 4 Port RS-232/422/485 Serial Hub
All pictures shown are for illustrative purposes only. Actual product may vary.
Part number: QSU2-400
B&B 4 Port RS-232/422/485 Serial Hub - 4 x RS-232/422/485 Serial
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    General Information
    B&B Electronics Mfg. Co
    Manufacturer Part Number
    Manufacturer Website
    Brand Name
    Product Model
    Product Name
    USB 2.0 To Serial 4 Port RS-232/422/485 Serial Adapter
    Marketing Information
    Connect serial devices to your USB-only PCs

    With panel mount USB connectors you boost speed and broaden the range of external peripherals used on your computer. Ideal for a variety of industries and applications including banking, retail and industrial automation.

    • Use legacy serial devices with USB PCs and laptops
    • Connect multiple devices with multi-port models

    View and compare our panel mount USB connectors below. Click on each model to view a photo and see the Details, Specs, Downloads, and Accessories tabs for further information.

    Product Type
    Serial Hub
    Technical Information
    Host Interface
    Data Transfer Rate
    Up to 921.60 Kbps Serial Port
    4 x RS-232/422/485 Serial
    Physical Characteristics
    Form Factor
    Standard Warranty