Antminer U3 S21 EXPH 860T Parameters:
| Product Overview | Value |
| Model | U3S21EXPH |
| Son | 860T |
| Version | 10 |
| Encryption algorithms/currency | SHA256|BTC/BCH/BSV |
| Typical hash rate, TH/s(1-1) | 860 |
| 35℃ when powered on (1-2), Watt (1-1) | 11,180 |
| Wall power efficiency at 35℃ (1-2), J/T (1-1) | 13.0 |
| Server dimensions (length*width*height, excluding packaging), mm | 900*482.6*130 |
| Server dimensions (length*width*height, including packaging), millimeters | 1,150*640*260 |
| Net weight, kilograms | 42.7 |
| Mao Zhong, kilogram | 48.6 |
Antminer U3 S21 860T is a flagship-level mining machine launched by Bitmain, specifically designed for the SHA-256 algorithm and primarily used for mining cryptocurrencies such as Bitcoin. It is equipped with a TSMC 3nm FinFET chip, boasting a computing power of up to 860 TH/s and an energy efficiency of as low as 13 J/T, reducing power consumption by about 20% compared to its predecessor. The miner adopts a closed-loop liquid cooling solution, allowing the core temperature to be stably controlled below 45°C. Its heat dissipation efficiency is improved by over 50% compared to traditional air cooling, and its operating noise is only 50dB, close to the sound level of a home air conditioner. Its dimensions are 900x482.6x130mm, with a net weight of 42.7kg, and it supports high-density cluster deployment.
| Performance Curve
1. Hash rate and inlet coolant temperature
2. Power efficiency and inlet coolant temperature
(3-1) The hash rate value and the wall-plug power efficiency are typical values. The actual hash rate value fluctuates by ±3%, and the actual wall-plug power efficiency fluctuates by ±5%.
|Specifications
| Detailed Features | Value |
| Power supply | |
| Phase | 3 |
| Input voltage, volts (2-1) | 380~415 |
| Input frequency range, Hz | 50~60 |
| Enter maximum current, amps | 24 |
| Power outlet | LP34 |
| Hardware Configuration | |
| Network connection mode | RJ45 Ethernet 10/100M |
| Server dimensions (length*width*height, excluding packaging), mm | 900*482.6*130 |
| Server dimensions (length*width*height, including packaging), millimeters | 1,150*640*260 |
| Net weight, kilograms | 42.7 |
| Mao Zhong, kilogram | 48.6 |
| Environmental Requirements | |
| Inlet coolant temperature, °C | 20~50 |
| Coolant flow rate, L/min | 16.0~20.0 |
| Coolant pressure, bar | ≤3.5 |
| Work Coolant (3-2) | Antifreeze / Pure water / Deionized water |
| Coolant pH |
Antifreeze: 7.0~9.0 Distilled water: 6.5~7.5 Deionized water: 8.5~9.5 |
| Diameter of the cooling water pipe connector, mm | OD14 |
| Storage temperature, °C | -20~70 |
| Operating humidity (non-condensing), relative humidity | 10~90% |
Notes:
(1-1) The hash rate value, wall power, and wall power efficiency are typical values. The actual hash rate value fluctuates by ±3%, and the actual wall power and wall power efficiency fluctuate by ±5%.
(1-2) Inlet coolant temperature.
(2-1) Warning: Incorrect input voltage may cause server damage.
(2-2) For detailed instructions on the use and maintenance of the cooling liquid, please refer to "ANTSPACE HK3 Water Cooling Container and Dry/Wet Tower Product Manual", Chapter 9, Section 3, Item 6, "Cooling Liquid Maintenance"!
How to buy?
Please contact our customer service.
| Buying Guide
1. Shipping, customs duties, and taxes (if any) are not included in the above retail price.
2. After an order is submitted, BITMAIN will not accept requests to cancel the order, refund a portion of the order amount, or change the ordered items to different items or different batches.
3. The images shown are for reference only; the final shipped version will prevail.
| Shipping Details
1. The product is made in China. If shipped to the United States, the customer will have to pay an additional 25% tariff.
2. For fully paid orders, Bitmain will arrange shipment on a first-come, first-served basis.
3. You will be responsible for any customs delays or returned goods caused by the lack of proper documentation. It is strongly recommended to familiarize yourself with local customs clearance policies and prepare all customs documents in advance to avoid any customs clearance delays or unexpected fees.
4. Click here to download the certificate of conformity and find more information about the customs clearance of BITMAIN products.
| Warranty
1. Provides a 180-day warranty from the shipping date. During the warranty period, Bitmain will cover the shipping costs for replacement parts.
2. The warranty applies only to the original purchaser who bought the machine directly from BITMAIN. Once the mining machine is resold, the warranty responsibility will be assumed by the reseller.
3. If the user fails to use the product in accordance with the provided instructions, specifications, and conditions, or changes the device settings without the prior written consent of BITMAIN, BITMAIN shall not be liable for any damage caused thereby.
4. Click here to view the complete list of terms and conditions applicable to all orders placed on shop.bitmain.com.
Miners are customized investment products, which differ from ordinary electronic products. Once purchased, they are non-returnable and non-exchangeable. We kindly ask for your understanding!
Processing & Shipping Time
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.
Payment Policies
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.
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.
Taxes & Custom Duties
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.
Warranty & Buyer Protection
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.
Customer FAQs
How long does it take to mine a Bitcoin?
The mining machine is calculated based on its daily output revenue, the time required to recover the investment cost of the mining machine, and the return rate, which is more valuable. There are many factors to consider when mining a coin, and it cannot be simply stated in one sentence!
Can I pick up the machine myself?
Yes, we offer self-pickup options. We have warehouses in Hong Kong, and the United States, so you can choose the nearest location based on your needs. Alternatively, we can also ship the machine to your forwarder's address.
Are miners purchased through you new?
Yes, we only sell brand new, factory-sealed miners. Apexto Team purchases equipment directly from the factory, ensuring all products are new and unused.
Typically, miners are shipped directly from the warehouse without opening the packaging. We only open the packaging for testing if requested by the customer before shipment.
Is there a minimum order quantity for miners?
No, there is no minimum order quantity. We cater to miners of all scales and understand that many investors prefer to start small before committing to larger investments.
Can l visit your warehouse in person before placing an order?
Yes, we welcome customers from all over the world to visit our warehouse. If it's not convenient for you, we can arrange an online video meeting or video call.
