GekkoScience 2PAC (Dual BM1384) USB Stickminer
<p><strong>[Discontinued by the Manufacturer]</strong><br /> Replaced by GekkoScience NEWPAC (Dual BM1387) USB Stickminer</p> <p>The most efficient USB miner ever manufactured is available in limited quantities! The 2-PAC Compac features 2 Bitmain BM1384 chips (same chip in S5) and a fully adjustable regulator design that gives you a core voltage range of 550mV to 800mV. Typical hashrate is 15+gh/s depending on clock rate. Efficiency is .31-.35 watts per gh. New packaging and instructional sheet to be added with each order.</p>