In a recent deployment, a 5V 70A power supply unit was successfully configured to power three NerdAxe machines—each consuming between 10 to 20 watts, amounting to roughly 6 to 12 amps of draw collectively.
The PSU, delivering a robust 350 watts of potential, operates efficiently within its threshold, making it ideal for compact mining environments where power predictability and operational headroom are key.
According to datasheet specifications and current draw estimates, the PSU offers more than double the amperage needed, allowing the miner to maintain uptime with reduced risk of voltage drop or overheating—both critical in edge deployments or garage setups.
With a maximum output of 70 amps at 5 volts, the PSU theoretically supports up to 5 NerdAxe units at 12 amps each, or up to 11 machines drawing 6 amps each.
This generous amperage ceiling enables modular expansion, allowing micro miners to scale their rigs without needing additional power supplies in the early stages.
The 5V configuration supports each NerdAxe’s expected load with clear margin for minor spikes or hardware revisions.
The power-to-efficiency ratio of this setup positions it as a case study in lean hardware performance for low-wattage SHA-256 mining, especially for hobbyists and small-batch test rigs.
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