Tue. Apr 16th, 2024


Are you ready to join the world of Bitcoin mining? The Antminer U3 USB miner is a popular choice among beginners and experienced miners alike. In this comprehensive guide, we will cover everything you need to know about purchasing and setting up the Antminer U3 USB miner.

What is the Antminer U3?

The Antminer U3 is a compact and efficient USB miner manufactured by Bitmain, a leading name in the cryptocurrency mining industry. With its small form factor and easy setup process, the Antminer U3 is perfect for those who want to dip their toes into Bitcoin mining without investing in expensive mining rigs.

Where to Buy the Antminer U3

To buy the Antminer U3, you have several options. You can search online marketplaces such as Amazon or eBay, or visit specialized cryptocurrency mining equipment retailers. Make sure to compare prices and read reviews before making a purchase. It’s also a good idea to check Bitmain’s official website for any authorized resellers.

Setting Up the Antminer U3

Setting up the Antminer U3 is a straightforward process that can be done by anyone, even with little technical knowledge. Here’s a step-by-step guide to get you started:

Step 1: Unboxing and Assembling

Upon receiving your Antminer U3, carefully unbox it and make sure that all the necessary components are included. The package should contain the Antminer U3 unit itself, a USB cable, and a power supply adaptor.

Step 2: Connect the Antminer U3

Connect the Antminer U3 to your computer using the provided USB cable. Ensure that the USB port on your computer is functioning properly.

Step 3: Install CGMiner

CGMiner is a popular software used to mine cryptocurrencies. Before starting the mining process, download and install CGMiner onto your computer. You can find the official CGMiner website for downloads and installation instructions.

Step 4: Configure CGMiner

After installing CGMiner, open the application and configure it to work with your Antminer U3. You will need to input the URL of the mining pool you wish to join, along with your mining pool username and password. Refer to the documentation provided by your mining pool for these details.

Step 5: Power Up and Start Mining

Plug in the power supply adaptor into an appropriate power source and connect it to the Antminer U3. Once everything is connected, power up the Antminer U3 and CGMiner will automatically start the mining process. You can monitor the mining progress and performance directly from CGMiner.


If you encounter any issues during the setup or mining process, here are a few tips to help you troubleshoot: 1. Make sure you have the latest drivers and firmware updates for your Antminer U3. 2. Double-check your network and internet connection. 3. Ensure that your computer meets the system requirements for running CGMiner. 4. Check for any error messages or warnings displayed by CGMiner and refer to the official documentation or community forums for solutions.


The Antminer U3 USB miner is a great choice for those looking to get started with Bitcoin mining. With its ease of use and compact design, it’s a convenient option for both beginners and experienced miners. By following this guide, you’ll be well on your way to successfully buying and setting up your Antminer U3 USB miner. Happy mining!

By admin