2 Pcs Bitmain Antminer U3 (New) 63gh/s +/- 5% Bitcoin BTC Miner 12v 6a Adapter USB Cable 63 GH/s (+/-5%) using just 50 watts Includes power supply, power cable, and USB cable Hashrate and VDD core voltage can be adjusted via cgminer command line 25 DB at 25 C FCC/CE certified