Looking it up more it seems it's rebranded from gamdias, skytech (most likely), or some more obscure OEM as that specific fan style/look (corsair copied frame) shows up on a lot of other chinese brands.
Probably uses the same weird 4x2 pin fan connector that looks like it can connect to the regular 4-pin fan header and has the RGB on the opposite pair.
But yeah, same recommendation to start looking for a replacement for it.
(especially if it's the non-ARGB version, which could put it at least 3+ yrs old at this point.)