The product quality is the most important in business ,so our quality control is very strict:

1. Our company’s miner including brand new and second-hand. Brand new ones are with original package and warranty, the second hand miner are in good condition:good performance in hash rate and power consumption.

2. Strictly control the quantity and quality of machines according to customer orders.

3. We will arrange quality inspection before delivery.

4. The packing will be water-proof, damp-proof and sealed。