4 video output modes: 1080p AHD, 1080p CVI, 1080p TVI, CVBS. UP: AHD DOWN: CVI LEFT: TVI RIGHT: CVBS. Video output: HD‑AHD (1080p), AHD, TVI, CVI, CVBS. Compatible with HD‑AHD/CVI for TVI/CVBS DVR.
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