Product name: Cows E2 Algorithm: Scrypt Power Consumption: 2100W Hash Rate: 2.20gh/s Weight: 9.5KG Operating Temperature: 0 - 40 °C Network Connection: Ethemet Noise: 75db Warranty: 180 Days Size: 360 x 155 x 247mm Please kindly note that the required input voltage for Miner is 220V. Wrong input voltage may probably cause miner damaged Please note: We Will charge 40% restock fee if return the Miner within 30 days, so please make a serious consideration before purchase.