We provide a thirty-working day warranty on the acquisition of all our refurbished products. Shipping and delivery charges, customs charges, and taxes are usually not A part of the retail price shown above. Bitmain Sprint miner Antminer Xilinx 7007 Zynq D7 control board Antminer D7 C52 7007 Edition control board https://deanjdptu.blog2freedom.com/37475958/the-ultimate-guide-to-is-antminer-profitable