I read it on rctech I think that its the same as savox, I was trying to find the tooth for the spline and that's where I read that spektr was savox.
I've heard good things about Jr though.
My programming card came with a USB cable and I emailed castle about these questions also and so far yalls answers and theirs r consistent ( not that I doubted u guys I just know that u guys r faster to reply then castle) and I also asked them what the USB was for and they said I can plug it into my computer like castle link. So that's cool.