Help Me Stream

Thanks for the advice. In looking through the details on that Wiki, I see that there's an ADC onboard on the T4 (haven't received mine yet for review) so hoping the Nano will build on that (no pun). With the addition of 4 USB 3.1 (gen 1, aka USB 3.0) Type A using two separate USB buses, as well as the Type-C connector for power (and assumed eDP 4 lane) as well as the addition of USB-over-HDMI (CEC) all clearly identifiable on the picture that Mindee posted, looks like the NanoPi-M4 will keep quite a bit of the basic media functionality...

Hi, I'm new to the forum and to Friendly ARM / non Raspberry Pi (Rpi) products in general, but was intrigued enough by the picture that Mindee posted of the NanoPi-M4 to risk commenting as a noob... If this is, indeed, an Rpi form-factor compatible board, the GPIO has almost doubled in size. GPIO 101 in the picture Mindee posted aligns with the 40-pin header for a standard Rpi, but I don't recall seeing on any of the official Pi units a second 24-pin GPIO (labeled as GPIO 102 in the pic of the NanoPi-M4). Any ideas what that might be for? Given the intent of the RK3399 as a media-centric SoC, I could see a scenario where the RK3399 I2S audio could be pinned out for at least 8 audio receive and 8 audio send,. That would account for 16 of the extra 24 pins, and would also explain why additional real estate was needed on the topside of the board. Taking the burden off the 40-pin GPIO, which had limited audio and video output capabilities on the Rpi, perhaps the remaining 8 pins in GPIO 102 might be used for pinning out one of the multiple video display options?