Getting started with mining rigs: what you need to know. Mining profitability depends on three critical factors working together. First, your hardware determines processing power and energy efficiency—choosing the right equipment directly impacts your ROI. Second, hash rate measures how many calculations your rig performs per second; higher hash rates mean better chances of solving blocks and earning rewards. Third, the economics matter most: factoring in electricity costs, hardware depreciation, and current block rewards against Bitcoin or other cryptocurrency prices. Successful miners balance all three elements. Understanding these fundamentals helps you evaluate whether mining makes sense for your situation and how to optimize operations for maximum returns.