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    Bitmain are committed to furthering the decentralization of the bitcoin network and providing quality products to consumers. In light of this, Bitmain is proud to announce its latest miner, the U3 USB miner.

    The U3 utilises 4 of Bitmain’s latest generation BM1382 chips in high quality, domed case.


    Max Hash Rate: 63 GH/s ±5%

    Power Efficiency: 1Watt/GH/s on wall at 0.83V

    Voltage: DC 12V input, 6A

    Chip Quantity per unit: 4

    One 80mm fan

    Noise: ~25 DB at 25 °C ambient temperature

    Hashrate and VDD core voltage can be adjusted via cgminer command line

    USB connection

    12V AC/DC power brick of 6A, but power line not included

    Certificate Compliance: FCC/CE


    Power consumption: Quoted figures depend on your PSUs efficiency, the ambient temperature and the accuracy of the power meter.

    PSU: You must provide your own a power line.


    Scalable: Multiple U3 miners can be maintained by one controller running cgminer due to its USB port.

    Hassle free: Setup consists of plugging in the USB and power cables and running Antminer CGMiner.

    Cool: U3s remain cool and quiet due to its 80mm fan which quietly exhausts air out the side of the case.

    Stable and Accurate: Based on the tried and tested BM1382 chip, the U3 is extremely stable and is able to run 24 hours a day without problems.


    The refined design of the U3 allow it to blend on any desk or shelf without standing out.

    Bitmain Antminer U3 Setup Guide

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