Bitmain
Antminer S21 Hyd
The Antminer S21 Hyd by Bitmain runs the SHA256 algorithm, delivers 335 TH/s, draws 5360W, at 16 J/TH efficiency. It mines BTC, BCH, BSV. Available for purchase from MinerHaolan with fast international shipping from Hong Kong and manufacturer warranty included.
Algorithm
SHA256
Hashrate
335 TH/s
Power
5360W
Available Coins
SSL Secured
256-bit encryption
6-12 Month Warranty
Full coverage
Free Shipping
Orders over $5,000
Buyer Protection
Verified seller
The S21 Hydro combines 335 TH/s hashrate with hydro cooling at 16 J/TH efficiency, drawing 5360W. Liquid cooling enables near-silent operation—a major advantage over air-cooled S21 models in noise-restricted environments. Requires dedicated water infrastructure with proper flow rates (8–10 L/min typical) and coolant temperature management. Delivers higher hashrate than air-cooled S21 while maintaining comparable efficiency. Ideal for professional data centers and facilities where thermal management and noise control justify the cooling infrastructure investment. Proven S21 platform with thermal upgrade.
Key Features
- Industry-leading 16 J/TH energy efficiency
- Powerful 335 TH/s hashrate for maximum profitability
- Advanced thermal management with Hydro-cooled
- Easy setup and management via web interface
Profitability Calculator🟢 Live Data
Estimates for Antminer S21 Hyd, from live network hashrate and price
| Metric | Daily | Monthly | Yearly |
|---|---|---|---|
| Income | $12.12 | $369.04 | $4,425.10 |
| Electricity | -$10.29 | -$313.26 | -$3,756.29 |
| Profit | $1.83 | $55.78 | $668.81 |
* Revenue from live network hashrate, block time and block reward (source: WhatToMine), assumes a 1% pool fee, and extrapolates today's difficulty and price flat for the monthly/yearly figures. Estimates only, not a guarantee of earnings.
Compare with similar miners
Same algorithm, closest hashrate. Estimated profit assumes $0.08/kWh electricity and live network data.
Bitmain
Bitmain Antminer S21 Hyd Bitcoin Miner
- Hashrate
- 335Th/s
- Power
- 5360W
- Efficiency
- 16 J/TH
- Cooling
- Hydrocooling
- Price
- $2,699.10
MicroBT
MicroBT Whatsminer M76 Bitcoin Miner
- Hashrate
- 336 TH/s
- Power
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- Efficiency
- 15.5 J/TH
- Cooling
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Bitdeer
Bitdeer SealMiner A4 Pro Air Bitcoin Miner
- Hashrate
- 336 TH/s
- Power
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- Efficiency
- 10.9 J/TH
- Cooling
- Air
- Price
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MicroBT
Whatsminer M78S
- Hashrate
- 340 TH/s
- Power
- 5100W
- Efficiency
- 15.0 J/TH
- Cooling
- Hydro
- Price
- $8,699.00
MicroBT
Whatsminer M76S
- Hashrate
- 320 TH/s
- Power
- 4800W
- Efficiency
- 15.0 J/TH
- Cooling
- Immersion
- Price
- $4,950.00
Bitmain
Antminer S23
- Hashrate
- 320 TH/s
- Power
- 4420W
- Efficiency
- 13.8 J/TH
- Cooling
- Air
- Price
- $8,349.00
Bitmain
Antminer S21e Hydro
- Hashrate
- 320 TH/s
- Power
- 5280W
- Efficiency
- 16.5 J/TH
- Cooling
- Hydro
- Price
- $1,699.00
MicroBT
MicroBT Whatsminer M76S Bitcoin Miner
- Hashrate
- 362Th/s
- Power
- 16A
- Efficiency
- N/A
- Cooling
- Air-cooled
- Price
- $4,679.10
Customer Reviews
Sign in to write a review4.3
Based on 29 reviews
API access is useful
The API access on the Antminer S21 Hyd is useful for my monitoring setup. Can pull stats programmatically for my dashboard. Nice feature for advanced users.
Electricity bill increase was reasonable
My electricity bill went up about $180/month with the Antminer S21 Hyd, which was close to my calculation. The mining income more than covers it. Just make sure you know your $/kWh rate before buying any miner.
Scaled from 1 to 3 containers in a year
Started with one Antminer S21 Hyd last year and we're now running three. The modularity is the real selling point — each container is its own self-contained data center. Our total hash rate tripled without any of the headaches of traditional facility expansion.
Warranty support exceeded expectations
Had a minor issue with my Antminer S21 Hyd and MinerHaolan's warranty support exceeded expectations. They handled it professionally and quickly. True customer-first approach.
Reliable as clockwork
My Antminer S21 Hyd runs like clockwork. Every day, same hash rate, same performance. No babysitting required. Just set it up once and forget about it. That's what I call reliability.
Frequently Asked Questions about Antminer S21 Hyd
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