I’ve been mining For many years, and this was my ideal obtaining practical experience up to now. The Antminer S21 arrived in time and labored correctly out with the box. Parcels are thoroughly organized with good documentation and authorization to be sure seamless customs clearance, minimizing delays. Be aware: https://usedantminerbitmain65319.ivasdesign.com/54667711/buy-bitmain-antminer-ks3-ultimate-mining-performance-guide