Club 3D CAC-1510-A USB C to Dual Link DVI-D Adapter HDCP Off not working

Updated on 22-07-2026 in Members Lounge.

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11 0 on 07-06-2025

dakerman

I purchased one of these adapters for the purpose of connecting my 30″ Cinema Display to my new Mac Mini M4 and it doesn’t work.

When plugged in I do see a very dark blue hue to the screen, and the power light comes on, indicating that it’s interfacing but not able to display anything.

If anyone could assist that would be appreciated, I emailed club-3d a week ago but have not heard back.

0 0 on 19-06-2025

Wiktor

Please email to [email protected] and ask for HDCP OFF software. I can’t find your initial email

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0 0 on 19-06-2025

dakerman

Could you check spam please? It’s from David. I’ll send another one now..

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0 0 on 19-06-2025

Wiktor

Now, we’ve got this!

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0 0 on 08-10-2025

justacupeofjoe

Hi there I’m experiencing a similar issue where the cable doesnt work at all connected to a Mac mini M2 using this cable to a 30″ mac cinema display. Can i get some support here OR does the cable not work at all as mentioned?

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2 0 on 08-10-2025

dakerman

I ended up buying a different monitor of the same type. The issue was with that particular monitor i guess. Club 3D couldn’t resolve the issue so I decided to purchase another screen and then the adapter worked with my M4 mac. It still flickers a little bit on a software with a black GUI but otherwise it works.

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justacupeofjoe

Thanks for the reply dude! Did you mean a different branded adapter vs monitor? I see a few other adapters I might try. Right now I don’t have the dual link dvi adapter from apple and I’m only using this cable to my Mac mini m2 and it worked once now it doesn’t work at all

dakerman

I kept the adapter and it worked with a different monitor (also a 30″ cinema display). I couldnt tell you why it worked but it did

0 0 on 08-10-2025

joevt

Check the EDIDs of the display and compare. One might have HDCP the other might not have HDCP. The one without HDCP is older and my require a different firmware.

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0 0 on 08-10-2025

joevt

Startech.com has a similar product CDP2DVIDP to the CAC-1510 and they have a download for firmware updating and a download for update instructions.
https://www.startech.com/en-ca/display-video-adapters/cdp2dvidp
The updater executable and eeprom files are identical to those provided by Club-3D support so they should work with the CAC-1510.

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1 0 on 08-10-2025

dakerman

@joevt How do I check the EDID?

Is the Startech software Mac compatible? It was a huge ordeal for me to work out how to update the firmware for the Club3D adapter on a PC.

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joevt

The firmware updater requires Windows.

Use SwitchResX to export the EDID? Or maybe BetterDisplay.app? The online EDID decoder at https://people.freedesktop.org/~imirkin/edid-decode/ can decode hex bytes of an EDID. I have a fork of the edid-decode utility at https://github.com/joevt/v4l-utils which I use on my Mac to decode EDIDs.