Mirabox HSV321

This is what matters about Mirabox HSV321.

About

One of the most widely adopted budget capture cards in the DIY/Hyperion ambient-lighting community — real USB 3.0 with YUY2 4:4:4 output, well past the older MS2109-based clones.

Max resolution
3840x2160@30Hz
Requires DisplayLink driver
No

Ports: 1× HDMI (entrada), 1× HDMI (salida, hasta 4K30) and 1× USB 3.0 Type-A (salida)

Confirmed with

  • Notebook (generic)

    Capture is hard-capped at 1080p60 despite the 4K30 passthrough. Reports of instability on Linux/SteamOS until the firmware is manually updated. Bypasses HDCP encryption non-standardly at the hardware level — a legal/technical gray area rather than a documented feature.