Yeah sounds dodgy, too cheap tbh. Alerted me to do this search, can anyone recommend any other sites to check out LEGIT ONES OF COURSE... 
Apart from the manufacturer themselves?
There are only a few resellers I would maybe trust, antminerdistribution, blokforge and www.eastshore.xyz, shops that have been in the business for years.
I would stay way even from the shops listed on asicminersvalue, some of them have a really bad reputation.