Hi, I am Grace Baker, and I have been working as a Marketing Manager at GD Supplies. GD Supplies is a leading bitcoin mining machine manufacturer and supplier headquartered in Canada. We are offering Bitmain Antminer S19j Pro ASIC miners. The Antminer S19J Pro is a high-performance bitcoin ASIC miner. Bitmain Antminer S19j miner that can produce at a maximum of 122 TH/S hashrate power consumption of 3355W. Find the Right bitcoin and other Mining hardware at an affordable cost only at GD Supplies.