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Magewell USB Capture SDI 4K Plus

Model: USB Capture SDI 4K Plus (part 32100; SKU 321000000) · US configuration

Magewell USB Capture SDI 4K Plus dark external capture enclosure with two BNC coaxial connectors.
Exact-model manufacturer image of the SDI 4K Plus enclosure and BNC sockets; not a test result.

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External single-channel 6G-SDI capture device with BNC loop-through and USB 3.0 host; the documented capture ceiling is below the similarly named 12G-SDI Pro model.

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Why consider this model?

  • A lower-bandwidth external SDI choice where 6G input and 4K30-class capture or documented 1080p modes suit the source; its 1080p60 Windows/OBS path is explicitly documented.

Tradeoffs to weigh

  • It is a 6G-SDI/USB 3.0 product, not the 12G-SDI/20 Gbps SDI 4K Pro. The 4K input/loop ceiling is 30 fps, capture does not reach 4K60 or 1080p120, and the reviewed sources do not define a Mac mode table or HDR workflow.
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