Dont JUST DONT. Dont buy miner from any site other then Bitmain or you will get CUCUMBERED. Most of the sites are bullshit "Legit Bitmain Distributor"... Legit my ass. Bitmain doesn't have any distributors, and most of the time you will lose your money, and never see it again. You can buy it from Ebay for 3-4-5k or just wait for Bitmain.