#bitaxe @ShopBitcoinAus @SoloSatoshi @skot9000
Run multiple Bitaxe Bitcoin solo miners with a powersupply which you can tweak the voltage on.  I settled on a  ‘MEAN WELL RS-150-5’.  I have just uploaded my cover design to Printables.  It does the job.  Power to the solo mining revolution. 
https://www.printables.com/model/1020215-mean-well-rs-150-5_cover