I am Grace Baker, and I work as a product manager at GD Supplies. We are a group of techies who constantly work for the profitability of every individual involved in the mining process. Our crypto mining hardware and equipment are state-of-the-art and highly guaranteed. A few of our mining machines that have the most exclusive technology include the Bitmain Antminer D7 1286gh, Goldshell KD5 Mining Machine, Bitmain Antminer S19j Pro, and Goldshell KD Box Miner.