Bitmaintech will send you the gear 99% of the time.
They are in China and sometimes customs screw up the deliveries if that happens fuck you.
If it came broken fuck you.
If it breaks in under 90 days and you look for warranty service fuck you.
Much of the fuck you's involve shipping back on your dime and waiting a month or more for gear replacement.
bitmaintech.com based in China
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bitmainwarranty will charge a little more send you the gear 99.9 % of the time if it is broken they are much better on service
https://bitmainwarranty.com/ based in usa
I have purchased a lot of gear from China more then 50 pieces since 2013 > Everyone made it to my home in New Jersey.
1 came broken I could show a photo of it broken ten minutes after it was marked delivered and bitmaintech said ship it to china no cross shipping basically fuck you.
bitmainwarranty pm'd me to send it to them and they crossed shipped one from Denver. 3 day delay vs 30 days.
Another one from China came and underhashed 4400 vs 4800 bitmaintech never sent me reinbursement. I bitched and moaned for 9 months. bitmainwarranty sent me a 150 usd refund on may 1st this year.
In both cases bitmainwarranty fixed bitmaintech's problems. good for me but I would not tell you this is the norm.
For me I order from China more often then not. But frankly it is not safe just pretty safe .
9 of 10 safe or maybe 48 of 50 safe.