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Antminer S21 188TH/s - Efficient Bitcoin ASIC Miner (id964)

Seller: ID569012

Antminer S21 188TH/s
Economic efficiency113.3
Operation Time68.52
Energy efficiency56.13
Ecos Score
85.57
Advised

Disclaimer

ASIC purchases on the ECOS Marketplace are direct deals between buyer and seller. Device is transferred upon purchase. All sales are final, non-refundable, and non-exchangeable. ECOS holds no responsibility for these transactions.

Benefits of buying a hosted ASIC

Instant launch
24/7 Maintenance and Security
  • 3300 W
  • 188 TH/s
  • 17.5 J/TH
Hosting Paid Till 2026-05-20Operating Days 798
$ 3279.76 ASIC Price
Online
Antminer S21 188TH/s
Monthly Hosting Fee
$ 225
Hosting Paid Till 2026-05-20Operating Days 798

Benefits of buying a hosted ASIC

Instant launch
24/7 Maintenance and Security
Sign-up bonus

Up to $250

Antminer S21 XP

270 TH/s

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270 TH/s30 daysFree
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Bitcoin Mining Profitability Calculator

Antminer S21 188TH/s

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Daily Mining

$9.02

0.00007520 BTC

Monthly Mining

$275.23

0.00229360 BTC

Yearly Mining

$3,302.78

0.02752320 BTC

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Description

Antminer S21 188 TH/s is a modern ASIC miner designed for Bitcoin mining using the SHA-256 algorithm. This model is built for professional and semi-industrial mining operations and belongs to Bitmain's new generation of mining hardware. The Bitmain Antminer S21 188 TH/s is engineered to deliver stable performance under high computational loads while meeting current energy efficiency requirements as network difficulty continues to grow.
The Antminer S21 188 TH/s delivers a hashrate of 188 TH/s, making it a well-balanced solution in terms of performance and power consumption. Thanks to its optimized architecture, the antminer s21 188 th s enables efficient electricity usage, which has a direct positive impact on overall Bitcoin mining economics. For miners looking for predictable performance, the antminer s21 188 remains a practical choice within the S21 series.

Specifications
  • Model: Antminer S21 188 TH/s
  • Hashrate: 188 TH/s
  • Power Consumption: ~3500 W
  • Energy Efficiency: ~18.5 J/TH
  • Algorithm: SHA-256

When selecting the Bitmain Antminer S21 188 TH/s, it is important to consider not only the technical specifications but also hosting conditions, electricity costs, and infrastructure quality. These factors determine real-world operating efficiency. With professional hosting solutions, the bitmain antminer s21 188 th s can be deployed under optimal conditions, ensuring stable and efficient Bitcoin mining performance.

Recent deals

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  • Antminer S21+ 235TH/s

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  • Antminer S21+ 235TH/s

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    2026-04-15 15:16 Seller: ECOS User

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Antminer S21 200TH/s

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  • 200
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Operating Days 822
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Antminer S21 200TH/s

Antminer S21 200TH/s

  • 200
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Operating Days 804
Monthly Hosting Fee 205.00
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140.52 ECOS Score

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Antminer S21 200TH/s

Antminer S21 200TH/s

  • 200
  • sha256
  • 17.5
Operating Days 805
Monthly Hosting Fee 205.00
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Seller: ECOS User

Frequently Asked Questions

Everything you need to know about ASIC mining and our marketplace
An ASIC miner is a specialized device designed exclusively for mining. Compared to GPU mining, miners ASIC deliver significantly higher efficiency, which has already made ASIC mining the industry standard for BTC extraction, especially at an industrial scale.
A reliable supplier of ASIC mining hardware operates within a legal framework and often has direct agreements with manufacturers such as Bitmain, MicroBT, and Goldshell. The origin of the equipment can always be verified, and serial numbers match the manufacturer's database. ECOS has been selling bitcoin miners for over eight years and guarantees verified specifications and transparent purchase conditions for anyone looking to buy ASIC miner solutions safely.
When selecting an ASIC mining machine, it is important to consider hashrate, power consumption, and payback period. On our platform, you can compare different ASIC miners by key parameters and choose the most suitable option. You can also browse the marketplace and select bitcoin mining machine offers based on your preferred criteria.
On the ECOS marketplace, users can purchase new and previously used ASIC miners at below-market ASIC prices, start ASIC mining, and later resell their equipment without leaving the platform. The marketplace provides full transparency, showing electricity costs, hosting fees, and service conditions in advance, along with a clear total cost of ownership for each bitcoin mining machine.
On our website, you can purchase new bitcoin mining equipment and place it in our data center, ensuring low electricity costs and stable returns without technical complexity. Marketplace purchases offer the same ASIC mining hardware at a lower ASIC price, but these units have already been in operation.
Yes. We sell only verified used ASIC miners with confirmed specifications and documented operating history.
Warranty terms depend on the specific ASIC mining machine. All warranty details are clearly stated on each miner's listing page.
When selecting an ASIC miner, pay attention to ASIC miner price, efficiency, and expected profitability. Platform filters allow you to sort crypto miners for sale by ROI, listing date, and other parameters. ECOS provides comprehensive analytics to help you choose the most effective bitcoin miners for BTC mining.
Yes. ECOS operates a transparent internal exchange for ASIC mining rigs, where pricing, operating history, and warranty scenarios are visible. This enables multiple strategies — from classic HODL plus mining to cycle arbitrage, where users buy ASIC miner units at a market low, mine BTC, and later resell the bitcoin mining machine for sale during an upswing.

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