1. Product Overview
The Unisheen UC3540H-4K30 is a high-performance 4-channel HDMI video capture card designed for professional video acquisition. It supports 4K30Hz input and capture, offering ultra-clear image quality and ultra-low latency for various applications including live streaming, game capture, video conferencing, and teaching recording.
2. Setup and Installation
2.1 System Requirements
To ensure optimal performance, your computer system should meet the following minimum requirements:
- CPU: Intel Core i5-6xxx or above / AMD Ryzen 5 1600 or above
- Memory: 8GB or above (Dual channel recommended)
- Interface: PCI-E 2.0 x4 or above
- Graphics Card: GeForce GTX 1060 or above / Radeon RX 5700 or above
- System: Windows 10/11
2.2 Hardware Installation
- The capture card needs to be installed in a PCIe slot on the computer motherboard.
- Ensure the power to your computer is turned off during installation/removal of the card.
- It is recommended to have 3 or more PCIe-4/8/16 specification interfaces available for multi-card setups.
- The card is compatible with PCIe X4 (and compatible with PCIe X8, X16) slots.
2.3 Connecting Devices
The UC3540H-4K30 supports multi-device connection via its four HDMI 1.4 input interfaces. Connect your video sources to the HDMI IN ports (HDMI IN1, HDMI IN2, HDMI IN3, HDMI IN4) on the capture card.
2.4 DIP Switch Configuration (for Multiple Cards)
If you are installing multiple capture cards in one PC, you may need to adjust the DIP switches on each card to ensure proper recognition and operation. Refer to the diagram below for typical settings:
The image shows three examples of DIP switch configurations (1st, 2nd, 3rd) with different combinations of switches 1, 2, 3, and 4 in the 'ON' or 'KE' (likely 'OFF') position. Consult your software or system requirements for the specific configuration needed for your setup.
3. Operating Instructions
3.1 Driver Installation
Drivers are required for the capture card to function correctly. Please install the appropriate drivers for your operating system. The card is compatible with:
- Windows (7, 8, 8.1, 10, 11)
- Linux (kernel version 2.6.38 and above)
- Windows Server 2008 R2
3.2 Compatible Software and Platforms
The Unisheen UC3540H-4K30 is widely compatible with various video software and live streaming platforms:
Compatible Software:
- Vmix
- Wirecast
- OBS Studio
- VJ
- Xsplit
- Windows Media Encoder
- Adobe Flash Media Live Encoder
- Real Producer Plus
- VLC
- AMCAP
- And others
Compatible SDKs: DirectShow/DirectKS/Wave API/DirectSound/WASAPI/V4L2/ALSA
Supported Live Streaming Platforms:
- YouTube
- TikTok
- Amazon Live
- Periscope
- Twitch
- Livestream
3.3 Key Features
- 4K30Hz Picture Quality: Supports 4K30Hz input and capture for clear and distinct ultra-HD images.
- 4-Channel Simultaneous Capture: Capture video from four HDMI sources concurrently, with the ability to switch between feeds for dynamic live productions.
- High-Bandwidth & Ultra-Low Latency: Utilizes PCIe-E x4 Gen2 interface for direct connection, ensuring fast data transmission and minimal delay.
- Multi-Card in PC Support: Compatible with x4, x8, and x16 slots, allowing multiple capture cards to operate simultaneously in a single host.
- SDK Support: Provides secondary development capabilities.
- Deinterlace: Features 1080i hardware de-interlacing for improved picture quality.
- 3D Noise Reduction: Enhances clarity by reducing visual noise.
4. Maintenance
To ensure the longevity and optimal performance of your Unisheen UC3540H-4K30 capture card, follow these general maintenance guidelines:
- Keep the card and your computer's interior free from dust. Regular cleaning with compressed air can prevent overheating and component damage.
- Ensure adequate airflow within your computer case to prevent the card from overheating, especially during prolonged use.
- Avoid exposing the card to extreme temperatures or humidity. Refer to the specifications for recommended operating and storage conditions.
- Handle the card with care during installation or removal to prevent physical damage to the components or the PCIe connector.
5. Troubleshooting
If you encounter issues with your Unisheen UC3540H-4K30 capture card, consider the following troubleshooting steps:
- No Signal/Black Screen:
- Verify all HDMI cables are securely connected to both the source device and the capture card.
- Ensure the source device is powered on and outputting video.
- Check your capture software settings to confirm the correct input channel is selected.
- Test with a different HDMI cable or source device to rule out external issues.
- Poor Video Quality/Lag:
- Confirm your computer meets the recommended system requirements, especially CPU and Graphics Card.
- Update your graphics card drivers and the capture card drivers to the latest versions.
- Close unnecessary applications running in the background to free up system resources.
- Adjust the resolution and frame rate settings in your capture software to a lower value to see if performance improves.
- Card Not Detected:
- Ensure the card is properly seated in the PCIe slot. Try re-seating it.
- Check your computer's Device Manager (Windows) or equivalent (Linux) to see if the card is listed and if there are any driver errors.
- If using multiple cards, verify the DIP switch settings are correctly configured for each card.
- Try installing the card in a different PCIe slot if available.
- Audio Issues:
- Ensure audio is embedded in the HDMI signal from your source.
- Check audio input settings in your capture software.
- Verify your computer's audio output settings are correctly configured.
If these steps do not resolve the issue, please refer to the manufacturer's support resources.
6. Specifications
The following table details the technical specifications of the Unisheen UC3540H-4K30 Video Capture Card:
| Feature | Specification |
|---|---|
| Brand Name | UNISHEEN |
| Model Number | UC3540H-4K30 |
| PCIe Interface | PCIe2.0 X4 (Compatible PCIe X8 X16) |
| Input Interface | 4xHDMI 1.4 |
| Output Interface | PCIeX4 (Compatible PCIe X8 X16) |
| Video Input Resolutions | 2160p30, 1080P50/60, 1080I50/60, 720P50/60, 576P, 576I, 480P, 480I |
| Audio Input | HDMI Embedded |
| HDMI Input Format | HDMI 1.4 |
| Output Color Space | YUV2 4:2:2 8bit |
| Recording Mode | Software Compression, Real-Time Mode |
| Operation System Compatibility | Windows (7, 8, 8.1, 10, 11), Linux (kernel 2.6.38+), Windows Server 2008 R2 |
| Multi Card in PC Support | Yes |
| Dimension | 147mm x 95mm |
| Board Height | Full Height Bracket (Compatible with full Height Chassis) |
| Consumption | <= 4.0 W |
| Work/Storage Temperature | 0-60 degrees Celsius |
| Storage Humidity | 5%-90% |
7. User Tips
- Optimize Software Settings: For the best performance, ensure your capture software (e.g., OBS Studio) is configured to match the input resolution and frame rate of your source. Experiment with different encoder settings (e.g., H.264, H.265) to find the balance between quality and system load.
- Monitor System Resources: During 4K capture or multi-channel streaming, keep an eye on your CPU and GPU usage. High usage can lead to dropped frames or lag. Upgrade components if necessary to meet the demands of your workflow.
- Cable Quality Matters: Use high-quality HDMI cables, especially for 4K signals, to prevent signal degradation and ensure stable connections.
- Test Before Live: Always perform a test recording or stream before going live to confirm all inputs are working correctly and the output quality is as expected.
- Audio Sync: If you experience audio/video sync issues, check for delay settings within your capture software. Some software allows you to add a small delay to either audio or video to synchronize them.
8. Warranty and Support
For warranty information, technical support, or further assistance, please contact Unisheen customer service or visit their official website. Keep your purchase receipt as proof of purchase for warranty claims.