yep appears to be a rip off, different circuit board design but most likely the same ASIC chip.... a certain country is very good at reverse engineering things....
LOL, reverse engineering? You think someone is that industrious? I could be wrong, but whomever jstefanop contracted out with to manufacture the ML2 either offered to remake these for this other person or the schematics were shared (possibly for a price) with another manufacturer. Could be an enterprising employee that has access to the schematics or even the owner him/herself. Electronics have a shelf life and the closer to obsolescence it reaches, the easier it is to have access to the schematics. Its all about the relationships and who you know in Hong Kong & mainland China.
No one has my schematics/designs...the only possible source would be a PCB design leak from the Chinese PCB manufacturer I use. Even so they don't have the full BOM so they would still need to at the very least reverse engineer resistor values and guess on capacitors. On top of that they needed to pull off my UART controller code thats embedded onto the chip, since the stick can't work with my bfgminer code without it. You'd be surprised how industrious the chinese can be when they can copy a relatively successful design.