What Is a USB Sound Card?

Almost all new computers come with built-in soundcards. These soundcards work to convert electronic signals into audio output through your computer's speakers or headphones. Even with built-in soundcards, users may opt to use externalized USB sound cards. Basic USB sound cards are inexpensive and easier to install than internal sound cards, making them an ideal upgrade in certain situations.

Compatibility

    USB sound cards are usually compatible with almost any PC and, in many cases, even Macs. As a USB device, most external sound cards feature "plug-and-play" technology for convenient sharing among multiple computers.
Brands
    Popular USB sound card models are made by M-Audio, Zalman, Creative Professional and Nortel.
Retailers
    Basic USB sound cards are available at big-name electronics stores like Best Buy and Comp USA. For advanced, high-end USB sound cards, music stores like The Guitar Center are a safe bet.
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Functionality
    USB sound cards can have basic or advanced functions. Some USB cards are no bigger than a pen-drive, containing only simple microphone and headphone jacks; other sound cards feature miniature mixing boards, XLR ports, equalizers and 1/4-inch jacks for professional recording.
Uses
    Typically, external sound cards are bought cheaply with basic features, allowing for a quick fix to a malfunctioning or poor quality on board sound card. Less frequently, expensive models are purchased for USB-based professional recording.
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