DeckLink Duo 2

DeckLink Duo is perfect for developers who need two
completely independent capture and playback streams in and
out of a computer, as both capture and playback channels
are completely independent. There are two SDI inputs, and
two SDI outputs plus a common tri-sync/black burst reference.
DeckLink Duo appears as two independent SDI cards to the
computer, but only uses a single PCI Express slot. DeckLink
Duo is perfect for servers where there are multiple streams
or simultaneous capture and playback per system. DeckLink
Duo is compatible with Windows™, Mac OS X™ and Linux™.