1. Xiaoqiang Q2S is the last latest model of Q series. The miner comes with a maximum hash rate of 25 Th/s and uses the SHA-256 algorithm. Bitcoin is the top coin to mine with this unit 2. The miner is fully ASIC supported, which means users can monitor the progress of the unit. 3. Most mineable coins found are highly profitable, which makes the miner a must-have. 4. It comes with a maximum power consumption of 2300W, which is expected for a Bitcoin miner. 5. Please note: when you running this machine, please do remember to use 220V-240V voltage.