Philippe Lessard Drolet

I'm planning to use two Blackmagic UltraStudio Express to grab two 1080p video sources from SDI, mix them, while beeing able to record one source unto disc. The computer would be :

Mac Pro, 3.5GHz 6-Core Intel Xeon E5 processor

Dual AMD FirePro D500 with 3GB GDDR5 VRAM each

1st question : Is it possible to access two instances of UltraStudio grabbers simultaniously ?

2nd question : Has anyone ever done something like this ? Will I be experiencing huge latency ? I assume not, since there is no A-D convertion involved...

Mac Pro, 3.5GHz 6-Core Intel Xeon E5 processor
32GB 1866MHz DDR3 ECC memory
Dual AMD FirePro D500 with 3GB GDDR5 VRAM each
512GB PCIe-based flash storage

1st question : Is it possible to access two instances of UltraStudio grabbers simultaniously ?
2nd question : Has anyone ever done something like this ? Will I be experiencing huge latency ? I assume not, since there is no A-D convertion involved...

grabbing from two Blackmagic UltraStudio Express simultaniously