How good/mature is RGBpx?
RGBpx only works with devices from Aquacomputer. It is not possible to control or sync other devices like razer or Hue.
How to handle temp sensors?
You can connect 8 Temp sensors to the Aquaero, or 4 Temp Sensors to the OCTO.
Would like to have audible alarm and/or PC self shutdown "capabilities" but unsure what cables are relevant.
You need an Aquaero for audible alarm.
There are two ways to shutdown your computer.
Software shutdown = the Aquasuite Software tells Windows Operating System to shutdown. This is a regular shutdown and takes a few seconds.
Hardware shutdown = the Power Supply will stop providing power to the Motherboard, so your Computer turns off instantly. All unsaved data will be lost.
The Aquaero can both, software shutdown and hardware shutdown. The OCTO can only use the software shutdown.
For the Hardware Shutdown, you need this
cable and this
connector and the Aquaero.
The Software Shutdown works with an USB connection between the Aquaero / Octo and the Motherboard