The USB acquisition card is a data acquisition card that collects data and then inputs it into the computer device through the USB interface. The current motherboard generally uses a control chipset that supports USB functions. The motherboard is also equipped with a USB interface socket. In addition to the socket on the back panel, the motherboard also has a USB pin reserved, which can be connected to the front of the chassis as a front USB interface for easy use (note that when wiring, you must carefully read the motherboard manual and connect according to the diagram. Do not connect it incorrectly to damage the device). In addition, the USB interface can also achieve dual-machine interconnection through a special USB connection line, and can expand more interfaces through the Hub.
USB has the advantages of fast transmission speed (USB1.1 is 12Mbps, USB2.0 is 480Mbps), easy to use, hot-swappable, flexible connection, independent power supply, etc. It can connect to almost all external devices such as mouse, keyboard, printer, scanner, camera, flash drive, MP3 machine, mobile phone, digital camera, mobile hard disk, external optical floppy drive, USB network card, ADSL Modem, CableModem, etc. Therefore, the USB interface video acquisition card is one of the most used interfaces in the industry.
The advantages of USB interface video capture cards are mainly reflected in the following aspects:
1. Convenience
Plug-and-Play: USB interface video capture cards support hot-swapping, eliminating the need to open the computer case for installation. Simply plug the card into a USB port on the computer and install the corresponding drivers to use it, greatly saving time and effort.
Portability: Due to their small size and sleek design, USB interface video capture cards are easy to carry around, allowing users to easily transfer and use them between different computers.
2. Compatibility
Broad System Support: USB interface video capture cards typically support multiple operating systems, such as Windows and Mac OS, enabling users to use the same capture card on computers with different operating systems, enhancing device utilization.
Compatibility with Multiple Video Devices: These cards support various video input formats, including standard definition, high definition, and even ultra-high definition video signals, allowing for connections to cameras, camcorders, and video recorders, among other video devices, to meet users' diverse video capture needs.
3. Stability
High-Performance Image Processing: USB interface video capture cards are equipped with high-performance image processing chips that can process and optimize video signals in real-time, ensuring clear and detailed output image quality.
Stable Transmission Performance: Utilizing advanced USB interface technologies (such as USB 2.0 or USB 3.0), these cards enable high-speed and stable data transmission, ensuring the real-time and integrity of video signals.
4. Flexibility
Multi-Input Support: Some USB interface video capture cards support multiple video inputs, allowing users to connect multiple video devices simultaneously for multi-screen display and recording.
Support for Secondary Development: Many USB interface video capture cards provide software development kits (SDKs), enabling users to customize and develop based on their needs to meet specific application scenarios.
5. Economy
Cost-Effective: Compared to other types of video capture cards, USB interface video capture cards offer higher cost-benefit ratios, fulfilling general users' video capture needs without requiring significant investments.
USB interface video capture cards are widely used and recognized in the video capture field due to their convenience, compatibility, stability, flexibility, and economy.
