Is this passive or active?

I am unsure, what do you mean? I use it with my computer hooked up to my tv for gaming. I'm using an nvidia Mars card, which puts out video and sound through this cable. I hope this helps, my apologies if it's not helpful

Does the Nippon Labs MINIDP-HDMI-10 cable support audio transfer?

Yes, it supports audio transfer for appropriately equipped computers.

Questions & Answers: Nippon Labs Model MINIDP-HDMI-10 Mini DisplayPort to HDMI® 32 AWG Cable

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Nippon Labs Model MINIDP-HDMI-10 10 ft. Mini DisplayPort to HDMI® 10ft 32 AWG Cable M-M 10 feet- OEM

2 Connector Number
Male to Male

$21^.72 –