The miners are functional but lack USB boot loader and i2c chaining. That is what I think they are working on. I also don't have miners nor my refund request "recieved". I cannot individually link each miner conveniently for my current situation as that would require more investment I currently do not have which is probably not a wise choice neither was investing in this whole group buy in the first place

So if you can mine without needing either the USB boot loader or i2c chaining probably best to ask for shipment asap.