12 projector output

[ray]

Hi all

Does anyone have any tips for running 12 or more projectors from one computer? I already have an rtx 4090 and an rtx 3070 installed but want to run at least 4 more projectors . 

Thanks,

Ray

[Skulpture]

Get a datapath FX4 or similar. It takes a single 4k input and splits it into quads; then you get 4 individual FHD outputs.https://www.datapath.co.uk/dat... 

[CitizenJoe]

I like the Blackmagic Decklink Quad (8 switchable in/out). It's under Capture and Playback, here: Products | Blackmagic Design

The one I have seems to have been replaced by a newer version, but I found it on eBay: Blackmagic Design BMDPCB143A DeckLink Quad PCIe SDI Capture Card | eBay

Cheers,

Hugh

[Woland]

@skulpture said:

Get a datapath FX4 or similar. It takes a single 4k input and splits it into quads; then you get 4 individual FHD outputs.https://www.datapath.co.uk/dat... 

 This would be my suggestion as well

[Woland]

@ray said:

I already have an rtx 4090 and an rtx 3070 installed

@DusX Could you please provide advice about working with multiple graphics cards on Windows? 

I always forget if this is a no-no or something that's fine to do after some specific configuration.

[Juriaan]

I personally did up to 10, using a Blackmagic Decklink Quad (8 Outputs), and two HDMI ports (control monitor / additional monitor for the backstage crew)

With a RTX 4090, and a speedy CPU you should be able to push that to do a Blackmagic Decklink + a Datapath FX4.

[ray]

Thanks for all of your suggestions. The datapath looks great but is beyond my budget. Please excuse my lack of knowledge but what type of output ports does the Blackmagic Decklink have and can I use an adapter to change them to HDMI? As far as multiple graphic cards on windows goes, I just slapped them in and they  worked. Dumb luck?