Do you buy your devices straight from china or from the US ? Im located in europe but the communication with the guys from china is lacking and i cant order psu's for some strange reason.
Ive found articles sayin a certain Yoshi sells them in the US but the sites seems old and outdated.
Bought thru Bitmain in China many times without problems, but I do live in the US. Not sure why you cant order the PSU? It shows on the website forsale? If I had my choice I would buy direct from Bitmain instead of Yoshi. There was a problem a while back where Yoshi went silent for a while and he lost a lot of trust with some.