Whether you’re a seasoned miner or new to the whole world of copyright mining, the Antminer S21 Professional is the final word BTC (bitcoin) miner to suit your needs.We linked an EVGA Supernova 1300 watt plus a 1200 Watt custom made Spondoolies PSU to your S9. If working with two PSUs This is a must that they be linked in the proper way. Just one… Read More