BEWARE!! They will take your money, laugh in your face and then ignore you.
I sent them my money for an S9. Six weeks later they confirmed they received my money, but first they marked my order Expired, Cancelled and Unpaid. Now their 'customer service' says the order is too old. They robbed me, they'll rob you too. Don't trust Bitmain with your money, they're are corrupt fraudulent crooks on every level. Canaan might be a better choice. Good luck.