I’ve been using signalrgb for a while now and like it. Their supported devices list has a few different Thermaltake specific devices. https://signalrgb.com/devices/ The free version works well for what I need (swafan ex14 and my TH420 connected to my motherboard rgb header). :) More on reddit.com

anyone know a solution to this issue? More on reddit.com

You seem to have some of this covered, but I'm going to use a little more detail because I expect I'll reference back to this comment in the future. I don't think Tt uses proprietary connectors, so that should make it easier. The product page for the case says it supports motherboard sync, which should mean the case controller can connect to the motherboard for control. The RGB Manual shows the two common aRGB/dRGB connection options for motherboard sync. This is nice, means you have a built-in hub. Now for the motherboard. Page 39 shows only RGB headers (the manual will typicall have RGB/aRGB listed next to each other in this section). One option would be to use a "converter" that changes aRGB (5V) to RGB (12V), but the downside with these is that it makes aRGB into RGB, so no rainbows or waves or any of the advanced patterns that take advantage of the addressable portion of aRGB. So this is probably not a solution for you. That means a controller. There are some manual ones out there that have buttons on the controller or a remote or a phone app, but most these are just variations on the presets your built-in controller has. So far the one I'm more familiar with is the small aRGB controller from cooler master, which can use USB and the CM software for control. For some reason CM is atrocious when it comes to providing information, thankfully this video covers some of the details the product page doesn't: https://www.youtube.com/watch?v=q3M67uC47zo Note that the USB header adapter they use is not included. Also, it probably requires a firmware update to work. I'm on the lookout for other options, so posts like this remind me to see what might be new out there. For example, I just came across this new (to me) option: Zalman Z-Sync which seems to offer a number of aRGB ports and connection via USB2 header and control with their software or Razer Chroma. And at 4A capacity it seems like it could be an interesting option. I'll have to check this one out more. Another new one is this GELID aRGB + fan hub/controller, but this seems more DIY as it's open-source and based on an Arduino. Hope that helps. Oh, and basic info on RGB: https://www.reddit.com/r/pcmasterrace/comments/enqbiw/pcmr_rgb_primer/ More on reddit.com

Hey u/iBUYPOWER-Brad , is there any chance you can field this question? More on reddit.com