A21 is manufactured by Dragonball which operates under the NexaPow algorithm with a maximum hashrate of 3.4Gh/s and power consumption of 1800W. Specifications Manufacturer DragonBall Model A21 Also known as DragonBall A21 Nexa Miner Release January 2025 Size w/o 360 x 185 x 290mm Size with 475 x 294 x 384mm Weight Net 16100g Weight Gross 17400g Noise level 75db Fan(s) 4 Networking Connection Mode RJ45 Ethernet 10/100M Storage Temperature -20-70 Power 1600W Input Voltage 165-300V Interface Ethernet Temperature 0 – 40 °C Humidity 10 – 90 % Warranty 180 Days