AVMatrix VC41 4-Channel 3G-SDI PCIe Capture Card

AVMatrix VC41: Four SDI Cameras Into One PCIe Slot

The AVMatrix VC41 is a four-channel 3G-SDI PCIe capture card that brings four independent broadcast camera feeds into a single computer. It is designed for multi-camera live production where every source arrives on locking SDI cable and needs to reach software cleanly and simultaneously. Four inputs on one card mean a compact, cable-efficient path from the cameras to OBS or a recording server. For studios and event crews standardized on SDI, it consolidates an entire camera roster into one expansion slot.

Why 3G-SDI for Multi-Camera Capture

3G-SDI carries up to 1080p60 over a single locking BNC connection and runs reliably across long distances, which is why professional cameras and switchers use it instead of consumer HDMI. The VC41 accepts four such feeds at once, capturing each up to 1080p60 in uncompressed YUY2. Locking connectors and long cable tolerance make SDI the dependable choice on a busy stage or a spread-out event floor. The VC41 turns that broadcast reliability into a computer-based capture workflow.

Dedicated Bandwidth for Four Streams

Capturing four simultaneous 1080p60 feeds demands sustained bandwidth that a shared USB bus cannot guarantee. The VC41 uses a PCIe 2.0 x4 interface providing 2.5 GB/s, dedicated to the card and its four channels, so no stream starves another. Each channel receives hardware de-interlacing and 3D noise reduction, cleaning interlaced and noisy sources before encoding. The result is four clean, synchronized feeds that a single machine can record or stream at once.

Flexible Orientation and Continuous Operation

The VC41 supports both portrait and landscape capture, accommodating the vertical-video formats that dominate social platforms. It is rated for 24/7 operation and supports multiple cards in one system, so a builder can scale beyond four inputs by adding cards. Supported on Windows 7 and newer and Linux 18.04 and newer, it works with OBS, PotPlayer, and XSplit. For an always-on multi-cam server, it is built to keep pace.

Built for Live Production and Capture Servers

The VC41 fits multi-camera SDI live production, broadcast capture servers, streaming of several SDI sources, and event or studio recording. Any facility running SDI cameras gains a way to fold four of them into one PC without a rack of external converters. Its internal design keeps cabling tidy and the signal path short, while its processing features lighten the host CPU. For the SDI-based studio building a capture backbone, the VC41 is the four-input cornerstone.