FAQ

Hummer Miner Official Most Powerful Cryptocurrency Miners
We now accept Bitcoin and CNY bank transfer within China. All of our machines are priced by US Dollars, which will be converted into real-time Bitcoin prices for purchase.
For Bitcoin, it takes 6 confirmations to receive payment. For bank transfer it takes 6 working days, we need to send the following information to [email protected] to confirm the payment: screenshot of the transfer, your name or registered address, your bank account, the amount transferred, or the order number. Once the payment is confirmed, we will send you a confirmation email.
Some coupons can only be used under certain conditions so please read the details carefully. Sometimes discounts cannot be used at the same time. If multiple specials are applicable, the biggest discount will be used.
On the product page, you will find the expected shipping date and it varies from country to country
We will soon provide real-time online services but now please send emails to [email protected] if you need any of our help. Our normal business hours are Monday - Friday, 10 am to 12 am, 2 pm to 6 pm Beijing Time (GMT+8).
Normally we can’t provide false information for custom declarations as it may cause trouble for shipment. We will declare all items as 'computer accessories' with the actual price. If you have special requires, please Put your request in the customer's comment box when placing the order
Our assembly line is in Shenzhen, China. We will use DHL to deliver worldwide. If you have some special requirements please contact us in advance.
We will need you to take a picture of the damage when you receive the package. When we’ve confirmed the damage, we’ll arrange the shipment of a new miner to you after you ship back the damaged one. The shipping fee for you to ship back the miner will be covered by Hummer Miner.
Return of goods and refund are not available. But we have a one-month warranty if your miner goes malfunctional. The shipping costs for warranty should be covered by customers.
All sales are final and refunds are not available unless we fail to deliver our miners. If special occasions happen that may require a refund, please contact our customer service. Hummer Miner reserve the right to decide a refund.
Bitcoin refunds may take 2-3 days to be received in your account. The refund of Bitcoin will be calculated against real-time rate for the USD you’ve paid.
You can follow the guidance at support center
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