Introduction
The Osee GoStream M2 is a versatile dual 4K HDMI capture card and stream switcher designed for live streaming, gaming, video conferencing, and video recording. It supports dual 4K60 HDMI inputs and 1080P60 output, offering efficient image transmission and various video effects. This manual provides detailed instructions for setup, operation, and troubleshooting to ensure optimal performance of your device.
Key Features
- Dual 4K60 Capture Board: Supports dual 4K60 HDMI input and 1080P60 output, enhancing image transmission efficiency for gaming, live streaming, video conferencing, and recording.
- Stream Switch and Picture-in-Picture (PIP) / Picture-by-Picture (PBP): Supports PIP and PBP video effects. A toggle button allows switching between two different streaming media. Offers 4 PBP layouts and 4 zoomable PIP layouts for diverse live conference and broadcast needs.
- USB-C 3.0 & Ultra-Low Latency: USB 3.0 offers significantly faster transmission speeds compared to USB 2.0. Ultra-low latency ensures seamless and efficient image and video transmission, greatly improving the gaming experience.
- Wide Compatibility: Compatible with mainstream operating systems like Windows, Android, MacOS, and Linux. Works with streaming platforms such as OBS, VLC, Skype, Zoom, XSplit, Potplayer, YouTube, TikTok, Instagram, and Facebook Gaming.
- 2 Input 1 Output HDMI Splitter: Functions as both a capture card and an HDMI switch. Easily connect multiple devices to one display, switch between two different stream sources, split the screen, or zoom out. Features headphone and microphone access, and a line-in interface for external mixers or amplifiers.
- High-Quality Video Format Support: Supports both MJPEG and NV12/YV12 video formats, providing excellent color reproduction and detailed image recording. High expressive power for graphics and text, ideal for high-quality gaming scenarios. No transparency, time limits, or subscriptions.
Package Contents
Verify that all items are present in the package:
- Osee GoStream M2 Unit x 1
- Soft Box x 1
- USB A(C)-C Cable x 1
- HDMI Cable x 1
- User Manual x 1
- Product Box x 1

Image: The Osee GoStream M2 package contents, including the device, soft box, USB A(C)-C cable, HDMI cable, user manual, and product box.
Setup Instructions
- Connect HDMI Sources: Connect your video sources (e.g., game console, camera) to the HDMI IN1 and HDMI IN2 ports on the Osee GoStream M2 using HDMI cables.
- Connect to Computer: Connect the Osee GoStream M2 to your computer using the provided USB A(C)-C cable. Ensure you use a USB 3.0 port on your computer for optimal performance. The device is plug-and-play, requiring no additional driver installation.
- Connect Display (Optional): If you wish to monitor the output directly, connect an external display to the HDMI OUT port on the Osee GoStream M2.
- Connect Audio Devices (Optional):
- Connect headphones to the headphone jack for audio monitoring.
- Connect a microphone to the microphone input jack.
- Use the line-in interface to connect external mixers or amplifiers for advanced audio setups.

Image: Illustration of Osee GoStream M2 enabling one-click switching between two 4K 60Hz video inputs on separate monitors, demonstrating a typical setup.
Operating Instructions
Power On/Off
The Osee GoStream M2 powers on automatically when connected to a computer via the USB-C cable. Disconnect the USB-C cable to power off the device.
Input Switching
Use the dedicated toggle button on the device (typically marked with a square icon and arrows) to switch between HDMI IN1 and HDMI IN2 sources. This allows for quick transitions between your connected devices.

Image: Angled view of the Osee GoStream M2 Dual 4K HDMI Capture Card and Stream Switcher, showing the input selection buttons.
PIP and PBP Modes
The Osee GoStream M2 supports various Picture-in-Picture (PIP) and Picture-by-Picture (PBP) layouts. Use the dedicated buttons on the device's control panel to select your desired layout. There are 4 PBP layouts and 4 zoomable PIP layouts available to suit different presentation and streaming needs.

Image: Visual representation of various Picture-in-Picture (PIP) and Picture-by-Picture (PBP) layouts achievable with the Osee GoStream M2.
Audio Management
The device allows for flexible audio management:
- Headphone Output: Connect headphones to monitor the audio from your selected input source.
- Microphone Input: Connect a microphone for voice commentary or communication during streams or conferences.
- Line-In Interface: Connect external audio mixers or amplifiers to the line-in port for professional audio integration.

Image: Diagram of the Osee GoStream M2 highlighting microphone, headphone, and line-in audio ports for high-quality audio capture.
Software Integration
To use the Osee GoStream M2 with streaming or recording software:
- Open your preferred software (e.g., OBS Studio, Zoom, VLC).
- Navigate to the video and audio input settings within the software.
- Select "Osee GoStream M2" as your video capture device.
- Select "Osee GoStream M2" as your audio input device.
- Configure any additional settings as required by your software or streaming platform.

Image: Osee GoStream M2 surrounded by various compatible devices and streaming platform logos, highlighting wide compatibility.
Specifications
| Feature | Description |
|---|---|
| Brand | Osee |
| Model Number | GoStream M2 |
| Compatible Devices | Notebooks, Smartphones, PCs |
| Compatible OS | Windows, Android, MacOS, Linux |
| Hardware Interface | USB |
| Video Standard | MPEG-2, MPEG-4 |
| Special Features | Stream Switch, Picture-in-Picture (PIP), Picture-by-Picture (PBP) |
| Package Dimensions | 15.5 x 10.1 x 7.2 cm |
| Item Weight | 370 g |
| Battery Usage | No |
Troubleshooting
- No Video Output / Black Screen:
- Ensure all HDMI cables are securely connected to both the source and the GoStream M2.
- Verify that the correct input source (IN1 or IN2) is selected on the GoStream M2.
- Check your computer's display settings or streaming software to ensure the GoStream M2 is selected as the video input device.
- Try using different HDMI cables or sources to rule out cable or source issues.
- No Audio Output:
- Ensure headphones or external audio devices are properly connected to the GoStream M2.
- Check your computer's sound settings and streaming software to ensure the GoStream M2 is selected as the audio input device.
- Verify that the audio levels on your source device and within your software are not muted or too low.
- Sound Device Error / Device Not Recognized:
- This can sometimes be caused by insufficient USB power. Try connecting the GoStream M2 to a different USB 3.0 port on your computer, or use a powered USB hub.
- Ensure the USB-C cable is fully inserted and not damaged.
- Restart your computer and reconnect the device.
- Image Freezing or Stuttering:
- Ensure your computer meets the minimum system requirements for 4K60 video processing.
- Close unnecessary applications running in the background to free up system resources.
- Verify that you are using a USB 3.0 port and the provided high-speed USB-C cable.
- While switching inputs or PIP/PBP modes, a brief 1-2 frame freeze may occur due to the device's processing. This is generally normal operation.
- Compatibility Issues with Specific External Devices (e.g., ATOMOS products):
- Some devices may have specific compatibility requirements. Refer to the documentation of your external device for compatibility information.
- Contact Osee customer support for assistance with specific compatibility concerns.
Maintenance
To ensure the longevity and optimal performance of your Osee GoStream M2, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the device. Avoid using liquid cleaners or abrasive materials.
- Storage: Store the device in a cool, dry place, away from direct sunlight and extreme temperatures. Use the provided soft box for protection when not in use.
- Handling: Handle the device with care to prevent physical damage from drops or impacts.
- Cable Management: Avoid bending or crimping cables excessively, as this can damage them over time.
Warranty and Support
Osee is committed to providing high-quality products and excellent customer service. Your Osee GoStream M2 comes with the following:
- 1 Year Warranty: Covers manufacturing defects and malfunctions under normal use.
- Lifetime Technical Support: Access to expert assistance for any technical queries or issues you may encounter.
- 24/7 Live Chat: Convenient support available around the clock.
- Professional Aid Group: A dedicated multilingual customer service team is available to resolve various after-sales service issues.
For any questions, concerns, or technical assistance, please do not hesitate to contact Osee customer service.





