Bitmain Antminer T21 190TH/s 3610W Bitcoin Miner

In-stock miners will ship within 3 business days. For bulk orders, please allow an additional 1-2 days via DHL Express, UPS, FedEx, or TNT.

Pre-order miner delivery times depend on the factory schedule. Estimated delivery dates are provided on the order page, but delays may occur due to production issues.

Shipments are processed on a first-paid, first-shipped basis. Once full payment is received, we aim to ship as quickly as possible. Payments via wire transfer (T/T) may take 3-7 business days to verify, while cryptocurrency payments typically take a few hours to 1 business day.

International shipping usually takes 5-8 business days, with remote locations potentially requiring 8-10 days.

*All sales are final and non-refundable. Please understand, this is an industry standard.

All products listed on our website are priced in US Dollars.

We accept payments via bank wire transfer or online cryptocurrency payment (BTC, ETH, KAS, USDT, USDC).

If you prefer offline payment, you can contact our online customer service.

Verify and only use the official collection accounts below:

• USDT TRC20: Starts with TRMJuGXKD6, ends with wD1nQhrQx4

• USDT ERC20: Starts with 0x74c8b301, ends with afAC3BE37f

• USDC TRC20 Address: Starting with "TRMJuGXKD6, and ending with "wD1nQhrQx4"

• USDC ERC20 Address: Starting with "0x74c8b301", and ending with "afAC3BE37f"

• BTC Address: Starting with "1Ar7Mt8AME, and ending with "B9wS8s2KQ7"

• ETH Address: Starting with "0x74c8b301, and ending with "afAC3BE37f"

• LTC Address: Starting with "LYYHkYb19e, and ending with "3T7HeDM1Yr"

• Bank-USD: APEXTO COMPANY LIMITED / LEADERSPOWER TECHNOLOGY COMPANY LIMITED

Note: Offline orders are only valid when placed within the social media group that includes our CFO, Lili Guo.
(WeChat / Telegram / WhatsApp: +86 13713801796)

Important: All cryptocurrency payments received on the website are automatically converted to USDT. If a product is out of stock, we will contact you for a refund. The refund will be based on the USD price at the time of your original order.

We offer DDP (Delivery Duty Paid) shipping to some countries, including the United States, Canada, Dubai, and certain EU countries.

If you require DDP shipping, please contact our customer service. For countries without DDP shipping or for standard shipping, we can help reduce taxes by providing a lower invoice value.

Customs duties are not included in the total price. You will need to pay them once the goods arrive in your country. Simply contact your local logistics company to settle the fees. If needed, we can provide a commercial invoice with a declared value of your choice.

Please notify us immediately if customs requests documents, as improper filing may lead to higher fees or delays. We can provide the necessary documentation.

For new, factory-sealed miners, the warranty is typically 12 months or 6 months, depending on the factory's policy, starting from the production date.

The company is not responsible for issues resulting from failure to follow the provided instructions, specifications, or alterations to the product.

For used mining machines, there is no warranty or after-sales service; however, before shipment, we will provide mining machine testing videos to ensure you understand its performance. Once you confirm acceptance, we will proceed with full communication and arrange shipment.

Transportation and any other costs related to product returns are the responsibility of the purchaser.

The repair period will depend on the nature of the issue.