Zidoo X8 and X9S

SoC – Realtek RTD1295DD
System Memory – 2GB DDR3
Storage – 8GB (x8) / 16GB (x9s) eMMC flash + micro SD slot + SATA 3.0 (x9s only)
Video Output / Input – HDMI2.0a output up to 4K, HDMI input with PVR and Time Shifting support (up to 1080p), and AV port (Composite + stereo audio)
Audio I/O – HDMI Out and In, AV, and optical S/PDIF
Connectivity – 10/100/1000M Ethernet, 802.11ac Wi-Fi, Bluetooth 4.0
USB – 1x USB 3.0, 2x USB 2.0 host ports.
Misc – ON/OFF switch, IR receiver
Power Supply – 12V/1,5A
Dimensions – 17.5 x 15 x 3.3 cm
Android 6

As a ethernet stream source

The instreamer app allows to stream the HDMI input via Ethernet / wifi to a stream sink

To be able to use instreamer, an ffmpeg binary compiled for the ARM CPU needs to be placed in /mnt/sdcard. Such an binary can be found e.g. at https://github.com/WritingMinds/ffmpeg-android/releases

After the first launch, press Menu for the Settings. This is the ffmpeg command that already worked on the Tronsmart Pavo M9:

ffmpeg -i - -c copy -absf aac_adtstoasc -f flv rtmp://100.122.3.243:1935/source/tronsmart

Preinstalled Apps are in the /system/apps/ directory.

The preinstalled HDMI app contains features to record (as TS and MP4) and stream over UDP (Broadcast/Multicast/Unicast)

Displays only current time - or when playing media - the current play position. Does not seem to have an seperate “recording” LED that could be used.

On the home screen, go to the apps tile, press the menu button three times, then press down (to get to the small tiles) and press menu again.