They have no feedback so i doubt it is legit. Even if it was with an antminer at 1.6 ghz you would need 4 of these to match it and i bet they probably pull a minimu of 10 watts each. Plue 4 x $16 = $64 so an antminer is cheaper, uses less power and takes up less room.

Now you could always try the scrypt code floating around on those but given it does 60khs on a 4 lx150 board you would not get much.