The dag memory size of this product is 5GB, which can mine ETC but cannot support mining ETHW ETH. The Jasminer X4-1U comes with a maximum hashrate of 520Mh/s The miner deals with coins under the Ethash algorithm. 0.462j/Mh is the efficiency that comes with this miner. Its one of the lowest power consumption levels we have, JUST 240W, which brings down running costs such as electricity expenses. The miner offers 80dB noise. please note such noise environment, if mind , do not place order, thanks , And this model machine can easily use Please note: This miner is used but really good quality