For when you’re low on aether. Or whatever else you like, maybe some magitek or crystal or ceruleum or what have you. The crystal dyes, after all!
Two options: all-in-one, or separate ‘port’ and ‘injector’. Moved to make posing easier.
Edit: Sorry ’bout that, had it on the wrong material. Should be working now. Shout out to DrakLux for the heads up!