Bitmain Best Selling Microbt Whatsminer M21S Minner PSU Power Supply

• FAQ

  
  

  1. UNISTAR respects the privacy of clients and provides services?A:based on mutual trust between both parties.

  
  
• UNISTAR does not disclose purchase information and

• A:confidential customer data.

  
  
• After-sales service conditions for UNISTAR mining machines:

• A:1.UNISTAR provides all customers with 100% inspection,cleaning,packaging,

  transportation and insurance services,and also provides all inspection videos.

  
  
• UNISTAR guarantees that 92% of the full computing power will be available for use within 48 hours after the buyer receives the goods,otherwise UNISTAR will

• compensate the buyer

  
  

  Established in 2014

  Our annual sales is 200 million US dollars. Our main markets include America, Russia, Europe, and South America. Founded in 2014, we are a leading cryptocurrency mining service provider in China. Our business includes quantitative investment in cryptocurrency, self-operated Bitcoin and Ethereum mines, and trading of cryptocurrency mining hardware. We provide all kinds of mining machines with brand of Antminer.

  
  

  Professional Team at Your Service

  Fengshi has a strong sales, maintenance and inspection team, and logistics team, which is close and efficient among the teams. At present, we have adjusted our business direction, focusing on providing cryptocurrency mining solutions for areas in need around the world, moving mining farms to regions rich in clean energy around the world, and providing maintenance services for the majority of miners.

  
  

  Engineers with More than 10 Years' Experience

  Unistar has a team of electronic maintenance engineers with more than 10 years' experience. The transparent maintenance process and professional maintenance equipment ensure integrity reporting, ultrahigh repair rate, and reduce customer maintenance costs. The machines we put in the warehouse must be cleaned up to make sure they are neat and tidy. Note: Professional dust removal equipment, high-pressure air gun and high-speed centrifuge can remove dust and debris from the chassis and restore the machine's good heat dissipation capacity and neat appearance.

  
  

  Exporting to More than 80 Countries

  Shenzhen Fengshi Technology Co., Ltdis a professional bitcoin mining machine sales, mining, and power supply company, and has many bitcoin computing power all over the world and owns dealership for various brands of mining machines, such as BTC/ETH/LTC/ZEC/DCR/HNS/Dash miner. We have exported to more than 80 countries in the world and our main markets are Russia, Dubai, Malaysia, the USA, Venezuela, Canada, Mexico, and other countries.

  
  

  TüV Certification

  Our price is competitive in the field of miners, and we have many overseas warehouses abroad, with favorable prices and convenient delivery. All our products must undergo rigorous testing and various performance tests.Fengshi has the certification and guarantee of shopfiy Amazon and other platforms, and prefers high-quality products and suppliers. It has the qualification certification of TüV, an international third-party inspection agency. Unistar has entered the mining machine trade field since 2008, committed to serving global mining farms as a gold service provider.

Transport:

(1) After payment, we will arrange testing and delivery within 2-3 days, will arrived about 7-13day after send out

(2) We will take a video with the machine's unique code and date to confirm the integrity of the item before shipment. If the customer does not purchase the transportation insurance, the damage caused by the transportation will be borne by the customer.