By PURPLELEC | 23 September 2024 | 0 Comments
What video formats can Thunderbolt capture cards support?
Thunderbolt capture card is a high-speed data acquisition device that uses Thunderbolt technology. It can be connected to a computer through a Thunderbolt interface. Thunderbolt technology combines two communication protocols, PCI Express (PCIe) and DisplayPort, to provide extremely high data transfer rates. The current mainstream Thunderbolt 3 and Thunderbolt 4 standards support bandwidths of up to 40Gbps and 40Gbps/50Gbps, respectively.
Thunderbolt capture cards are often used in professional scenarios that require high-speed transmission of large amounts of data, such as HD or UHD video editing, multi-screen high-resolution display output, external high-performance storage devices, professional audio production, etc. These capture cards can capture video and audio signals from a variety of sources, such as HDMI, SDI, DisplayPort, etc., and then transmit them to the computer for real-time processing through the Thunderbolt interface with near-lossless and low latency.
Compared with traditional PCIe capture cards, a major advantage of Thunderbolt capture cards is its plug-and-play portability. Users can quickly expand the functions of their computers through the Thunderbolt interface without opening the computer case, which is very suitable for laptop users or work environments that require flexible configuration. Thunderbolt capture cards are high-performance, portable data acquisition solutions designed for professional applications that pursue extreme speed and flexibility.
The video formats that Thunderbolt capture cards can support are quite wide, which mainly depends on the model, specifications and manufacturer's design of the capture card. Generally speaking, Thunderbolt capture cards can support a variety of video formats from low resolution to high resolution, including but not limited to the following:
High-definition video formats: such as 1080p (Full HD), which is one of the most common high-definition video formats currently and is widely used in various video devices and platforms.
Ultra-high-definition video formats: including 4K (Ultra HD) and higher resolution video formats. With the popularity of 4K TVs and the richness of content, more and more Thunderbolt capture cards have begun to support the capture and output of 4K video formats.
Professional video formats: such as HD-SDI, 3G-SDI, etc. These formats are often used in broadcast-level video production and high-end video editing. Some high-end Thunderbolt capture cards will support these professional video formats to meet the needs of professional users.
Multiple encoding formats: In addition to resolution, Thunderbolt capture cards may also support multiple video encoding formats, such as H.264, H.265 (HEVC), etc. These encoding formats have their own advantages in compression efficiency, image quality and compatibility. Users can choose the appropriate encoding format according to actual needs.
Wide HDMI and SDI interface support: Thunderbolt capture cards are usually equipped with HDMI and/or SDI interfaces, which support a wide range of video formats and resolutions. The HDMI interface can support video signals from SD (standard definition) to HD (high definition) to Ultra HD (ultra-high definition) and even 4K resolution. The SDI interface is often used for connections between professional video equipment and supports a variety of professional video formats.
It should be noted that the specific video format support varies depending on the model and manufacturer of the capture card. Therefore, when choosing a Thunderbolt capture card, it is recommended to carefully read the product specification sheet or consult the manufacturer to obtain accurate information.
In addition, with the continuous development of technology, new video formats and encoding standards continue to emerge. Therefore, when choosing a Thunderbolt capture card, users also need to consider whether it supports the latest video formats and encoding standards to ensure that it can meet the needs of future video production and editing.
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