By PURPLELEC | 08 April 2025 | 0 Comments
Quad HDMI Capture Card: Professional HD Capture Tool
The Quad HDMI Capture Card is a professional HD PCIe capture card with four-channel capabilities. The following is a detailed introduction to its main features and functions:
The Quad HDMI Capture Card has four independent channels and can handle input resolutions up to 2,048 x 2,160 pixels and frame rates up to 144 FPS. Its video engine supports multiple functions such as 10-bit video processing, cropping, color correction, hardware timestamp, etc. In addition, multiple cards can be operated synchronously for more efficient video capture.
Four different input signals can be processed on four independent channels through HDMI connection. The four Magewell video engines operate independently without relying on the CPU of the host PC. The capture card provides functions such as resolution and refresh rate conversion (up and down), deinterlacing, color correction, color space conversion and on-screen display (OSD) to meet diverse video processing needs.
In terms of resolution and refresh rate, the Quad HDMI capture card supports a maximum input and recording resolution of 2,048 x 2,160 pixels at a frame rate of 144 FPS. However, the actual refresh rate may be limited by the PCIe bandwidth. For resolutions above 1,280 x 1,024 pixels, the refresh rate is limited by the pixel clock of the installed video processing hardware. The maximum refresh rate of 1,920 x 1,080 pixels is about 80 FPS. The capture card can also handle non-standard resolutions and refresh rates by adjusting the driver.
A rotatable switch is mounted on the circuit board and can be set to 16 different positions (0 to F) to determine the card number. This will be displayed in the system, such as Pro Capture Quad HDMI 01 when the switch is set to 1. The connected audio and video devices are identified in the software using the card number, making it easier for users to track them. In addition, the capture card is equipped with a high-resolution 100 nanosecond hardware clock that can set timestamps in audio and video frames to ensure that the recordings are accurately dated. The clock can be synchronized between multiple installed cards via the SDK.
The Quad HDMI capture card supports various Windows and Linux operating systems as well as numerous APIs and add-ons. Quad HDMI has an extremely low recording latency of only 60 milliseconds. The SDK allows users to activate low latency mode, which reduces the latency to 64 scan lines. In addition, the capture card also supports the comprehensive recording software Capture Express and provides the function of manually updating the firmware.
The Quad HDMI capture card is an ideal choice for professional HD video capture due to its excellent performance and rich features.
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