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Bitmain Antminer S21+ Hydro 395 ths

SKU: Antminer-S21-Hydro-395

  • Hashrate395 TH/s
  • Power5925 W
  • Efficiency15 J/TH
  • AlgorithmSHA-256
  • CoinBTC

€2,956.87

(excl.VAT)
1

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Pre-order · November 2026

Order confirmed within 24h
  • Tracked deliveryTo all 27 EU countries

  • Warranty & supportAfter-sales help

  • Card, bank, cryptoSecure checkout

Calculate profitability

Estimate

Miner revenue varies with coin mining difficulty

€
Profit / day
+€5.65
Profit over 200 days
+€1,130
Break-even electricity price
€0.09/kWh
Pays for itself in
≈ 17 months≈ 21 months

Live daily miner revenue €12.76 Power cost / day €7.11

Revenue and profit per day
  • Revenue
  • Profit at €0.05/kWh

Estimate for 395 TH/s at today’s Bitcoin difficulty, block reward and BTC price (mempool.space, CoinGecko; updated 2026-10-24 11:55 UTC), before pool fees. Power cost = watts × 24 h × your price per kWh.

Specifications: Bitmain Antminer S21+ Hydro 395 ths

Coin

BTC

Consumption

5.93 kW

Hashrate

395Th/s

Efficiency

15 J/TH

ModelS21+ Hyd

Also Known AsBitmain Antminer S21+ Hydro

CoinBitcoin, BCH

Release2025-02-28

Hashrate395Th/s

Noise Level40db

Sizes34x18x21

Consume, kWh5925w

Energy Efficiency15j/Ths

Voltage380~415V AC

InterfaceEthernet

Temperature0-40c

Warranty360days

Description for: Bitmain Antminer S21+ Hydro 395 ths

Bitmain Antminer S21+ Hydro: Unleashing Superior Bitcoin Mining Performance

Description: The Bitmain Antminer S21+ Hydro is a state-of-the-art Bitcoin mining machine engineered for high efficiency and performance. Utilizing advanced hydro-cooling technology, it ensures optimal temperature regulation, enhancing both stability and longevity. With a formidable hash rate of 395 TH/s and a power consumption of 5925W, the S21+ Hydro offers an impressive power efficiency of 15 J/TH, making it a top choice for miners seeking to maximize profitability while minimizing energy costs.

Key Features:

  • Exceptional Hash Rate: Delivers a powerful 395 terahashes per second (TH/s), significantly boosting mining capabilities.
  • Hydro-Cooling System: Incorporates cutting-edge hydro-cooling technology to maintain optimal operating temperatures, ensuring consistent performance and extended hardware lifespan.
  • Energy Efficiency: Achieves a remarkable power efficiency of 15 joules per terahash (J/TH), optimizing energy consumption for cost-effective mining operations.
  • Robust Build: Constructed with high-quality materials, the miner measures 410 x 170 x 209 mm and weighs 14.5 kg, ensuring durability and ease of integration into existing mining setups.
  • Low Noise Operation: Designed to operate at a noise level of 50 decibels (dB), making it suitable for various environments without causing significant noise disturbances.

Why Choose the Antminer S21+ Hydro: The Antminer S21+ Hydro stands out in the competitive landscape of cryptocurrency mining hardware due to its blend of high performance, energy efficiency, and innovative cooling solutions. Its hydro-cooling system not only enhances performance but also contributes to a quieter and more stable mining environment. This miner is ideal for both large-scale mining farms and individual miners aiming to maximize returns on investment through efficient and reliable hardware.

Frequently Asked Questions (FAQs):

  • What cryptocurrencies can the Antminer S21+ Hydro mine?
    • It is designed primarily for mining Bitcoin (BTC) and other SHA-256 algorithm-based cryptocurrencies.
  • What are the power requirements for this miner?
    • The miner requires a three-phase AC input voltage between 380V and 415V, operating at a frequency of 50–60 Hz with a maximum input current of 12 Amps.
  • Is the hydro-cooling system difficult to maintain?
    • The hydro-cooling system is designed for efficiency and ease of maintenance, utilizing deionized or pure water with specific pH levels to ensure optimal performance.
  • What is the operating temperature range?
    • The miner operates effectively within a coolant inlet temperature range of 20°C to 50°C, accommodating various environmental conditions.
  • Does the miner come with a warranty?
    • Warranty details are typically provided by the manufacturer or authorized distributors; it's advisable to consult them directly for specific warranty information.

Incorporating the Bitmain Antminer S21+ Hydro into your mining operations promises a blend of high performance, energy efficiency, and advanced cooling technology, positioning you at the forefront of cryptocurrency mining.

Warranty When ordering mining rig, you agree that it is customized for most optimal mining. Mining rig parts comes with 180 days factory warranty. Bitmain product warranty guidelines HERE

TERMS OF SALE

  • Please provide payment proof within 24 hours of your order being placed
  • A unit can only be reserved once payment has been received, not when an order is placed online
  • All sales are final, no refunds will be granted

Shipping :

  • Typical dispatch time within 7 working days
  • Full customer support before and after purchase

Europe express delivery 1-3 days , economy shipping 3-6 days. US and Asia shipping 2-5 days to deliver to your door. All items shipped with DHL.

Previous generation ASIC miner models from manufacturers.

Warranty

Factory warranty per manufacturer guidelines
Working product delivery guaranteed
Full after-sales support team

Terms of Sale

Payment proof required within 24 hours
Reservation confirmed upon receipt of payment
Industrial ASIC miners: all sales are final. Other products: 14-day return if unopened.

Shipping Information

Express: Europe 1–3 days, US & Asia 2–5 days
Economy: Europe 3–6 days
Dispatch within 7 working days
Ships via DHL, FedEx & UPS

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Bitmain Antminer S21+ Hydro 395 ths
€2,956.87 €3,636.95 (excl.VAT) incl. VAT