Bitmain Antminer S21 hardware profile

Review the published hashrate, power demand, algorithm, and operating context for the Bitmain Antminer S21 miner.

Algorithm: SHA-256
Hashrate: 200TH/s
Power draw: 3,500 W
Efficiency: 17.5 W/TH/s

Specs checked Sep 4, 2026· Source: bitmain.com

Research profile by MiningFAQ Editorial Team

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Nominal published figures. Actual results vary by unit, firmware, and operating conditions.

Specification sheet

Manufacturer: Bitmain
Model: Antminer S21
Algorithm: SHA-256
Hashrate: 200 TH/s
Power draw: 3,500 W
Efficiency: 17.5 W per TH/s
Status: Current

Nominal figures observed September 4, 2026. Source: bitmain.com. Real power and hashrate vary by unit, firmware, and environment.

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The Antminer S21 is an application-specific integrated circuit miner for SHA-256 networks. This profile records nominal specifications for comparison; real power, hashrate, noise, and thermal behavior vary by unit, firmware, environment, and operating mode.

Recorded specifications

The source reviewed on September 4, 2026 listed a nominal hashrate of 200 TH/s and power demand of 3,500 W. Confirm the exact variant and current manufacturer documentation before purchasing or installing equipment.