Electronically, it's a Braiins S19 controller running two Compac A1s. Made fast and dirty, probably for advertising purposes with minimal engineering.
(I was at the Prague show and took one apart yesterday

)
Not surprised! Looking at the silhouette-illustrations of the internals on the BRAIINS site, I was thinking about how strikingly similar it looks to the QAxe lmao. With the advertised power figures and output, it falls in line, precisely, with my 2 A1's running at 494 MHZ / 315 mV). Plus - its utilizing the BCB100 which is their Bitmain controller lol.