Dell U2410 versus U2412M

[Rafael Amador]

You are right.
If your monitor connexion is S-Video, you need one of the Infinitys with Thunderbolt.
No way to connect the T-Tap unless SDI or HDMI IN.
rafael

[Sascha Engel]

But the infinity also has HDMI and SDI out, in case I want to connect later an HD monitor?

[Rafael Amador]

HDMI, yes.
SDI, no.
Rafael