Bitmain Antminer S21 XP Hydro 473T – Ultra-High-Performance Bitcoin Miner

The Bitmain Antminer S21 XP Hydro 473T is a flagship, water-cooled SHA-256 ASIC miner designed for serious Bitcoin (BTC) and Bitcoin Cash (BCH) operations. Delivering up to 473 TH/s of hashrate at around 5.7 kW power consumption, it’s built for miners who want top-tier performance, strong efficiency and stable 24/7 operation.

With hydro cooling, the S21 XP Hydro offers better thermal management, higher density and lower noise levels compared to traditional air-cooled miners. It’s ideal for professional mining farms, containers or dedicated hydro-cooled installations where power and cooling infrastructure are properly managed.

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What the Bitmain Antminer S21 XP Hydro mines

• Algorithm: SHA-256

• Primary coins:

  • Bitcoin (BTC)

  • Bitcoin Cash (BCH)

• Other SHA-256 coins:

  • Bitcoin SV (BSV) and various other SHA-256–based altcoins, depending on your mining pool

You can direct the hashrate to any SHA-256 coin supported by your pool, but most miners will use the S21 XP Hydro primarily for BTC.

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Key features

• 473 TH/s SHA-256 hashrate
  Delivers up to 473 terahash per second, putting it in the top tier of hydro-cooled Bitcoin miners for pure hashing power.

• High efficiency at around 12 J/TH
  With a typical power draw of about 5 676 W and an efficiency of roughly 12 joules per terahash, the S21 XP Hydro offers an excellent balance between hashrate and electricity usage.

• Hydro cooling for superior thermal performance
  The integrated hydro-cooling system circulates coolant through the miner, keeping chips at stable temperatures and allowing higher density deployments compared to air-cooled units. This helps extend hardware life and maintain consistent performance.

• Lower noise than air-cooled miners
  With a typical noise level around 50 dB, the S21 XP Hydro is significantly quieter than most high-end air-cooled ASICs. It’s still best suited to dedicated mining spaces, but the hydro design drastically reduces fan noise.

• Built for professional 24/7 operation
  Designed specifically for continuous, industrial-scale mining with appropriate three-phase power and a correctly sized water-cooling loop. Once installed and configured, it can run around the clock with standard monitoring.

• Straightforward network configuration
  Uses a standard Ethernet interface. Connect it to your network, access the web dashboard, set your pool and wallet details, configure your coolant parameters, and start mining.

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Technical specifications

You can drop this directly into a spec table on your product page.

• Manufacturer: Bitmain

• Model: Antminer S21 XP Hydro (473T)

• Algorithm: SHA-256

• Supported coins: Bitcoin (BTC), Bitcoin Cash (BCH), Bitcoin SV (BSV) and other SHA-256–based coins (pool dependent)

• Hashrate: 473 TH/s (typical, ±3% variance)

• Power consumption: Approximately 5 676 W at the wall (±5%)

• Energy efficiency: Around 12 J/TH

• Cooling: Hydro cooling (liquid-cooled loop required)

• Noise level: Around 50 dB

• Network interface: RJ45 Ethernet

• Input voltage: Three-phase AC, typically 380–415V (check your power infrastructure)

• Recommended inlet water temperature: Approximately 20–50 °C

• Coolant flow rate: Around 8–10 L/min

• Maximum coolant pressure: Up to about 3.5 bar

• Recommended working fluids: Antifreeze, deionised water or pure water (with correct pH and corrosion protection)

• Operating temperature (environment): Roughly 5 – 45 °C

• Operating humidity: Roughly 10 – 90% RH, non-condensing

• Dimensions (miner body): Approximately 410 × 170 × 209 mm

• Weight: Around 12.8–15.7 kg (net, depending on configuration and supplier)

What’s in the box

• Bitmain Antminer S21 XP Hydro 473T miner

• Compatible power connectors (if included)

• Quick start / basic setup guide

 

Important installation note:

This miner must be connected to a suitable hydro-cooling loop and three-phase power source. It is not a standalone “plug into a wall socket” device. Ensure you have appropriate electrical and cooling infrastructure or hosting in place.