Bitaxe Ultra 204 (200 Series) Solo Bitcoin Miner

The Ultimate Desktop Solo Bitcoin Miner

The Bitaxe Ultra 204 (200 Series) is the third major revision of the fully open-source hardware Bitcoin ASIC miner. Designed around the highly coveted BM1366 ASIC chip—the exact same silicon powering the legendary Antminer S19XP and S19k Pro—the Ultra brings industrial-grade efficiency directly to your home. Built for cypherpunks and DIY enthusiasts, it allows you to experience true solo mining with a low-cost, low-maintenance, and highly reliable setup.

Operating on a strict 5V DC power profile (drawing roughly 15W), the Bitaxe Ultra 204 dynamically auto-tunes its power, heat, and efficiency for maximum performance. It is a completely standalone embedded device. Simply connect it to your Wi-Fi, point it to your preferred solo pool, and let it hunt for blocks 24/7 without the need for an external computer.

Key Features ⚡ S19XP Silicon: Powered by the ultra-efficient BM1366 ASIC chip (0.021 J/GH). 🔌 Standalone Operation: Built-in ESP32-S3 Wi-Fi microcontroller allows for direct pool mining with no PC required. 🧠 100% Open-Source: Fully transparent hardware, software, and firmware. All design files are open to the community. 🌡️ Smart Auto-Tuning: Onboard TI INA260 power meter and Microchip PWM fan controller automatically optimize power, heat, and efficiency. 🖥️ Integrated OLED Display: A crisp 0.91" SSD1306 screen displays real-time hashrate, temperature, and network data. 🛠️ USB-C Programming: Easy firmware updates and advanced programming via the onboard USB-C port.

Technical Specifications

• ASIC Chip: BM1366 (Antminer S19XP architecture)
• Efficiency: ~21 J/TH (0.021 J/GH)
• Power Input: Strictly 5V DC (>15W capacity required)
• Power Connector: 5.5 x 2.5mm center-positive barrel jack
• Microcontroller: ESP32-S3-WROOM-1 (Wi-Fi)
• Display: 0.91" SSD1306 OLED I2C
• Firmware: Open-source ESP-Miner / AxeOS

What’s Included in the Box

• 1x Bitaxe Ultra 204 Miner (Fully flashed, configured, and bench-tested)
• 1x 5V DC Power Supply (Required for safe operation)
• Quick Start Setup Guide

Simple, Plug-and-Play Setup The Bitaxe Ultra 204 is designed for effortless deployment. You do not need a dedicated computer to run it:

1. Connect the device to the included 5V power supply (Warning: Using anything other than 5V will permanently damage the unit).
2. Connect to the Bitaxe's temporary Wi-Fi network using your phone or computer.
3. Open the web interface (the IP address will display on the OLED screen).
4. Enter your home Wi-Fi credentials and your personal Bitcoin wallet address.
5. Save the settings. The device will reboot and begin mining autonomously.

Shipping & Warranty details 📦 Fast Dispatch: All units are securely packaged and shipped directly from the United States. 🧾 30-Day Warranty: Covers hardware and manufacturing defects out of the box. 🔁 30-Day Returns: Accepted within 30 days (buyer is responsible for return shipping unless the unit is proven faulty).

Frequently Asked Questions Can I solo mine with this device? Yes! The Bitaxe Ultra 204 is designed specifically for solo mining. It connects directly to your preferred solo mining pool (like Solo CKPool) or your own local Bitcoin node. Can I use any power supply? No. The Bitaxe Ultra strictly requires a 5V DC power supply capable of 15W or more. Using a 12V or other voltage supply with the same barrel jack will destroy the miner. Do I need a PC to keep it running? No. Once you complete the initial 2-minute setup via your browser, the Bitaxe runs completely standalone over your Wi-Fi network. You can turn your computer off and the miner will continue hashing 24/7.