1. Introduction
The SABRENT USB External Stereo Sound Adapter (AU-MMSA) provides an easy solution for adding audio input and output capabilities to your computer. It is ideal for bypassing a faulty sound card, replacing damaged audio ports, or adding a microphone input to systems that lack one. This adapter offers a plug-and-play experience, requiring no additional drivers for most operating systems.
Figure 1: SABRENT USB External Stereo Sound Adapter (AU-MMSA)
Figure 2: Adapter connected to a laptop with headphones
2. Setup
- Connect the Adapter: Insert the USB Type-A connector of the SABRENT AU-MMSA into an available USB port on your computer.
- Connect Audio Devices:
- For audio output (headphones/speakers), plug your device's 3.5mm jack into the green stereo output jack on the adapter.
- For microphone input, plug your microphone's 3.5mm jack into the pink mono microphone-input jack on the adapter.
- System Recognition: Your operating system (Windows, Mac, Linux) should automatically detect and configure the adapter as a new audio device. No additional drivers are typically required.
- Select Audio Device: In your computer's sound settings, ensure that the "USB Audio Device" or similar is selected as the default playback and recording device.
Figure 3: Internal components and port identification
3. Operating Instructions
Once connected and configured, the SABRENT AU-MMSA functions as your computer's primary audio interface. You can use it for various audio tasks:
- Audio Playback: Listen to music, videos, or system sounds through connected headphones or speakers.
- Microphone Input: Use a connected microphone for voice chat, recording, or online meetings.
- Compatibility: The adapter is compatible with a wide range of operating systems, including Windows 98SE/ME/2000/XP/Server 2003/Vista/7/8/10, Linux, and Mac OS X.
- Power: The device is USB bus-powered, meaning it draws power directly from the USB port and does not require an external power adapter.
Figure 4: Compatible audio devices
4. Features and Specifications
Key Features:
- Connectors: USB Type-A, Stereo output jack, Mono microphone-input jack.
- Driverless for Windows 98SE/ME/2000/XP/Server 2003/Vista/7/8/10, Linux, Mac OS X.
- USB bus-powered, no external power required.
- Reverse Compliant with USB Audio Device Class Specification 1.0.
Technical Specifications:
| Specification | Detail |
|---|---|
| Model Number | AU-MMSA |
| Hardware Platform | Linux |
| Operating System | Windows 10 (and earlier versions), Mac OS X, Linux |
| Item Weight | 0.317 ounces |
| Product Dimensions | 1.5 x 0.4 x 0.9 inches |
| Hardware Interface | USB |
| Audio Output Mode | 3D sound |
| Compatible Devices | Gaming Console, PC, Laptop |
Figure 5: Integrated C-Media HS-100 chip for enhanced audio
5. Troubleshooting
- No Sound Output / Microphone Not Working:
- Ensure the adapter is securely plugged into a functional USB port.
- Verify that your headphones/speakers are correctly plugged into the green jack and your microphone into the pink jack.
- Check your computer's sound settings (e.g., Windows Sound Control Panel, macOS Sound Preferences) to confirm that the "USB Audio Device" is selected as the default playback and recording device.
- Adjust volume levels in both your application and system settings.
- Sound Quality Issues (e.g., static, low volume):
- Test with different headphones/speakers or microphones to rule out issues with your audio peripherals.
- Try connecting the adapter to a different USB port on your computer.
- Ensure your operating system is up to date, as this can sometimes resolve generic driver conflicts.
- Occasional Audio Pops:
- Some users have reported audio pops when the device is in use and the volume is muted, or when sound starts/stops. This can sometimes be related to power management settings for USB devices.
- Ensure system volume is not set to zero or muted when expecting audio.
- Check for updated USB controller drivers from your computer manufacturer.
6. Warranty and Support
SABRENT products are designed for reliability and performance. For detailed warranty information, product registration, or technical assistance, please visit the official SABRENT website or contact their customer support directly. Support resources often include FAQs, driver downloads (if applicable), and contact forms for personalized help.
If you encounter any difficulties with your SABRENT USB External Stereo Sound Adapter, please refer to the troubleshooting section or reach out to SABRENT customer support for assistance.
