1)Please note: this model machine is Refurbished one, it's really like new, good quality and working condition machine(give away 220v PSU) 2)L3++ Litecoin mining machine uses the latest generation chip independently developed by Bitmain 3)28-nanometer FinFET process, and uses a fully customized design solution to pursue a more efficient and low-energy mining experience. The energy consumption ratio has reached 1.6J/MH 4)Double front and rear fans, independent heat sink, better heat dissipation 5)The chassis is made of aluminum alloy, and the surroundings are integrally formed. Each chip has an independent heat sink, and the overall structure is more compact 6)The heat sink adopts a new bonding technology to make the body more robust 7)Hash rate of 580MH/s with a variation of +/- 5% expected.