CM100B do-it-anywhere sound card with driver or driverless operation - Core advantage: Uses the CM100B sound card chip to offer both plug-and-play use without a driver and access to enhanced features by installing a driver, including sound effect settings and sound field (surround) settings, with broad compatibility. - Power and connectivity: USB bus powered, no external power supply required. - Driver and compatibility: No driver installation needed on Windows 98, Windows XP, Windows Server 2003, Windows Vista, and Linux. For other operating systems, driver installation may provide full functionality. - Output and surround processing: USB 2.0 digital output with virtual 7.1-channel processing capability (actual output is 2.1 channels); the listening experience is comparable to a motherboard-integrated sound card. 2-3 practical use scenarios - PC gaming and multimedia on legacy or budget builds: Simply plug in via USB, enjoy driverless operation on compatible Windows and Linux systems, and access sound effect and field settings when a driver is installed. - Home theater PC or multimedia setup: Use the USB connection for easy integration with speakers or a receiver; the virtual surround processing enhances music and movie playback without needing a dedicated PCIe sound card. - Laptop or portable desktop use for conferencing and everyday listening: USB bus powered and highly portable, enabling quick setup for calls, videos, and media playback on systems that support the listed operating systems.