Product DetailsCertification: CE Brand Name: AvalonAlgorithm: SHA-256 Power Consumption: 3400WHashrate: 81TH/s Encryption: YesVideo Memory Capacity: 512MB Chipset Manufacturer: Avalon 1166 ProType: Bitmain Avalonminer Products Status: StockRating Power: > 1000W Output Interface Type: Avalon minerPlace of Origin: Guangdong, China Material: MetalStyle: Other Memory Interface: 128 BitInterface Type: USB 2.0 Video Memory Type: DDRManufacturer: Bitmain After-sales Service: RepairHash Rate: 81T Warranty(Year): 180 daysPower Efficiency: 42J/TH Input voltage: 200~240VChips 171 chips Size: 331mm x 195mm x 292mmWorking temperature: 0â - 40â Weight (without package): 12.8KGCooling: Two 12038 fans. Front fan: 6000RPM,Rear fan: 4300RPM Network Connection: Ethernet