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What makes a mining rig an ASIC?
ASIC stands for application-specific integrated circuit. Unlike a general-purpose computer, an ASIC miner is designed to run a particular algorithm rather than switch freely among unrelated computing tasks or mining algorithms. For Bitcoin mining, the hardware performs SHA-256 calculations; a machine designed for a different algorithm is not automatically suitable for Bitcoin.
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The complete rig is more than its ASIC chips. It commonly includes hash boards carrying the chips, a control board that manages the unit, a power supply and cooling to remove the heat produced during operation.
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What does an ASIC rig do when mining?
In Bitcoin mining, the machine performs computational work used to process transactions and help secure the network. Mining software coordinates the work. A miner can work alone or contribute its hashing power to a pool. Pool participants combine resources and generally share proceeds in proportion to contributed hashing power; pooling reduces the variability of payouts compared with waiting for a solo block.
#1 Best Overall
- SUPERIOR HASHING POWER: Unlock 13.8 TH/s of mining performance with the updated Rev 3.1 architecture. Engineered for SHA-256 algorithm efficiency, this unit provides a powerful and consistent hashrate for Bitcoin and compatible cryptocurrency mining.
- ULTRA-LOW ENERGY CONSUMPTION: Experience the perfect balance of performance and efficiency. Running at a remarkably low 230W, this miner maximizes your output while keeping your electricity costs manageable, making it the ideal choice for 24/7 sustainable home mining.
- WHISPER-QUIET LIQUID COOLING: Designed specifically for home environments, our advanced integrated hydro-cooling system dissipates heat effectively while maintaining near-silent operation. Enjoy high-performance mining without the noise disturbance typical of industrial-grade equipment.
- PLUG-AND-PLAY SETUP: Get started in minutes with our user-friendly, open-source interface. The device features integrated Wi-Fi connectivity and an intuitive dashboard, allowing both beginners and experienced enthusiasts to manage their mining pool settings with ease.
- COMPACT & ROBUST DESIGN: Built with durability in mind, the Rev 3.1 features a sleek, space-saving form factor that fits perfectly on any desk or shelf. It includes a high-quality power supply unit (PSU) and is ready for immediate deployment in your home or office.
How to interpret an ASIC miner’s specifications
- Algorithm: Confirms which mining work the machine is built to perform. Compare hashrate only among machines designed for the same algorithm.
- Hashrate: The number of hash attempts the unit can perform per second. It describes computing capacity, not electricity cost or earnings by itself.
- Wall power: The power the machine draws at the electrical supply. Facility needs can be higher because cooling and other supporting infrastructure also use energy.
- Efficiency: For SHA-256 miners, joules per terahash (J/TH) expresses energy use relative to hashing output. A lower figure indicates less energy per unit of hashing under the stated conditions.
- Installation conditions: Check electrical input, temperature, humidity, altitude, noise, physical dimensions and the exact model revision. Manufacturer figures apply under specified conditions and may have stated tolerances.
Example: Bitmain Antminer S21 Pro specifications
Bitmain’s 2024 specification for the S21 Pro lists SHA-256 mining for BTC/BCH, a typical hashrate of 234 TH/s, typical wall power of 3,510 W at 25°C, and typical wall efficiency of 15 J/TH. These are model-specific figures, not characteristics of ASIC rigs generally. Bitmain says actual hashrate may fluctuate by ±3%, and actual wall power and efficiency by ±5%. Consult the manufacturer’s specification for the exact revision and its full operating and electrical conditions before planning an installation.
Does an ASIC’s hashrate tell you whether mining is profitable?
No. Hashrate alone does not establish profitability. Any estimate also depends on electricity cost, network reward, network difficulty and total network hashrate; cooling and other facility energy use affect the total electricity requirement. Those inputs change, so a nameplate hashrate or model definition cannot establish current returns. The IEA’s analysis of Bitcoin mining energy use identifies hardware specifications, network conditions and non-IT infrastructure among the factors affecting energy use; it is not a current estimate of network consumption.
Rank #2
- Next-Generation Mining and Heating Solution: Introducing the Canaan Avalon Mini 3, a new, innovative dual-purpose device offering a 37.5 TH/s hash rate, perfect for both solo and pool mining while providing efficient heating.
- Efficient Energy Use: Operating at just 800W power consumption, the Avalon Mini 3 maximizes your cryptocurrency mining efficiency while saving electricity. It also generates heat to warm your room, providing both comfort and cost savings.
- Ideal for Home Use: Whisper-Quiet Performance: With noise levels ranging from just 33 to 55 dB, the Avalon Mini 3 is engineered for minimal sound, making it perfect for home environments. This dual-purpose device serves as both a space heater and a Bitcoin miner, ideally suited for living rooms or bedrooms without disrupting your peace.
- Reliable Power Supply & Heating Function: Outfitted with Canaan's original power supply, it guarantees stable power for consistent mining. Dual-functioning as a space heater, it can warm a 10 cubic meter room from 15°C (59°F) to 21°C (70°F) in about 10 minutes, providing cozy warmth during mining sessions.
- User-Friendly Design: With dimensions of approximately 29.92 x 4.09 x 8.44 inches, It features WiFi connectivity, allowing for easy control and operation through a user-friendly mobile app, making setup and adjustments simple and convenient.
What to compare when evaluating two rigs
Compare machines that mine the same algorithm, then assess their hashrate together with wall power and efficiency. Also verify electrical requirements, cooling and operating conditions, noise, dimensions and exact revision. A higher hashrate alone does not show that one unit is a better economic choice.
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Best Value
- SLOT - 6/8/12 GPU slots, support 2 ATX power supplies.
- MATERIAL - The open air mining frame case made up of the highest quality stainless steel material, strong, durable and available. Fully protecting your GPU and eectronic device.
- PERFECT DESIGN - Professional design for mining rig frame, accelerating the air convection, super cooling design for heat dissipation. Enough space reserved between the graphics cards.
- EASY TO INSTALL - Easy to install and strong structure. Keep all cables clean and organized, along with everything in your mining machine.
- NEED TO ASSEMBLE BY YOURSELF - For installation steps, please refer to the user manual. The Frame Only, Not includes Fans or other CPU, GPU, PSU, Motherboards, Cables. If you are not 100% satistifed with this Miner, please feel free to contact us, we will offer you a satisfactory soluiton within 24 hours.
Rank #4
- ⚡ Efficient Home ASIC Miner – Up to 1.1 TH/s hashrate with just 18W power consumption (15 J/TH), perfect for home or small office use.
- 🇪🇺 Made in Europe – Designed and manufactured in Europe with premium components for reliability and long-term performance.
- 🔧 BM1370 ASIC Chip (Antminer S21 Pro) – Same chip used in the Antminer S21 Pro for professional-grade mining power in a compact, open-source form.
- 📡 Wi-Fi & USB-C Connectivity – No monitor or keyboard required – configure and monitor easily via web interface
- 🎁 Complete Kit Included – Delivered fully assembled with EU/UK/US 5V 6A power supply, premium fan, 3D-printed stand, and OLED display.
Rank #3
- 6 TH/s Hashrate at 100W – 4× BM1370 ASIC chips deliver ~16 J/TH efficiency for compact 24/7 home Bitcoin mining.
- Ultra-Quiet Operation – Premium low-noise fan keeps the miner whisper-silent, ideal for living rooms, bedrooms, and home offices.
- Plug & Play or DIY – AxeOS open-source firmware with 2.4G Wi-Fi or Ethernet for easy solo mining or pool connection.
- Real-Time Monitoring – Built-in 1.9" T-Display shows hashrate, temperature, power draw, and diagnostics directly on the device.
- Complete Kit Included – NerdQaxe++ miner, premium 12.4V / 10A power supply, and sturdy metal stand. Made in Europe with high-quality components.
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