its better to buy mining rigs than asic that also used ones man it worth 1450$ and now u  used it they are not even new and if things goes wrong and the prices of mining with ASIC is goiing down 6$ /day lol it was 23$ /day back then  each machine now worth 70k not more than that
IF SOME 1 need to buy RIGS let me know 8767314712