Bitcoin Miner U3S21EXPH
1. Hashrate vs. Inlet Coolant Temperature

2. Power Efficiency vs. Inlet Coolant Temperature

The hashrate value, and power efficiency on wall are all typical values. The actual hashrate value fluctuates by ±3%, and the actual power efficiency on wall fluctuate by ±5%.
Bitcoin Miner U3S21EXPH – Power, Precision, and Performance in One Hydro Miner
BITMAIN, the global leader in blockchain computing and cryptocurrency mining solutions, introduces the Antminer U3S21EXPH – a next-generation hydro-cooled SHA-256 miner engineered for peak performance and industrial reliability. Designed for mining Bitcoin (BTC), Bitcoin Cash (BCH), and Bitcoin SV (BSV), the U3S21EXPH delivers 860 TH/s of exceptional hashrate with superior energy efficiency of 13 J/TH at the wall.
Built for high-capacity mining operations, the U3S21EXPH combines cutting-edge thermal management with industrial-grade design, enabling 24/7 stable performance in even the most demanding environments.
Why Choose the Antminer U3S21EXPH?
- Outstanding Hashrate: Up to 860 TH/s, delivering powerful mining performance.
- Energy Efficiency: Only 13 J/TH, maximizing profitability through reduced energy costs.
- Hydro-Cooling System: Advanced cooling maintains quiet operation and stable temperatures, improving longevity and uptime.
- Industrial-Grade Design: Optimized for three-phase 380–415V power environments.
- Professional Operation: Built for data centers and large-scale mining farms requiring consistent, reliable output.
Performance Meets Practicality
The U3S21EXPH isn’t just powerful—it’s engineered for longevity, energy efficiency, and scalability. Its hydro-cooling system ensures consistent temperature regulation, reducing wear and extending the machine’s operational life. Ideal for industrial-scale miners, it combines low noise, robust build quality, and optimized energy performance for round-the-clock operation.
NOTE:
- The hashrate value, power on wall, and power efficiency on wall are all typical values. The actual hashrate value fluctuates by ±3%, and the actual power on wall and power efficiency on wall fluctuate by ±5%.
- Inlet coolant temperature.
- Caution: Wrong input voltage may cause server damaged.
- For detailed working coolant use and maintenance instructions, please refer to “ANTSPACE HK3 Water Cooling Container & Dry-Wet Tower Product Manual“, Chapter 9, Article 3, Point 6, “Maintenance of Coolant”!
Purchasing Guidelines
- The product needs full payment.
- The shipping costs, customs charges, and taxes(if any) are not included in the retail price shown above.
- After an order has been submitted, a request to cancel the order, refund any part of the ordered amount or change the ordered item(s) to different item(s) or different batch(es) will not be entertained by BITMAIN.
- The pictures shown are for reference only; the final shipment version shall prevail.
Shipping Details
- The products are made in China. If shipping to the US., customers will needs to pay an extra 25% tariff.
- Shipments will be scheduled on a first-paid-first-ship basis for orders on which BITMAIN has received full payment.
- You are responsible for any customs delays or returned shipments due to a lack of proper documentation. It’s highly recommended to be aware of local customs clearance policies and to prepare all customs documentation ahead of time to avoid any customs clearance delays or unexpected costs.
Warranty
- A 365-day warranty is provided starting from the shipping date. BITMAIN will cover shipping costs when shipping a replacement unit within the warranty period.
- The warranty only applies to the original purchaser who purchased the machine directly from BITMAIN. Once the miner is resold, warranty coverage becomes the responsibility of the re-seller.
- If the user fails to use the product per the given instructions, specifications, and conditions provided or changes the function settings of the unit without BITMAIN’s prior consent, BITMAIN will not be liable for any damage arising therefrom.














Reviews
There are no reviews yet.