Bitmain Antminer S21

Name: ⛏ BITMAIN ANTMINER S21 hashrate, profitability, price and specifications
Brand: Kryptex
Rating: 4.6 (89 reviews)

Algorithm:SHA-256
Hashrate:200.00 TH/s
Power:3550W • 17.75 J/T
Price: $4700.00 • 23.5 $/T

Last updated: 28/04/2026

Antminer S21 Description

Bitmain Antminer S21 has a maximum hashrate of 200.00 TH/s on the SHA-256 algorithm. Its power consumption is 3550W. At the moment, the most profitable coin to mine on this ASIC is QUAI-SHA256.

Start mining with Kryptex Pool Download User Manual (PDF) How to connect ASIC to pool

Hashrate Antminer S21

$/kWh

Coin	Hashrate	Revenue	Profit
Quai SHA256	200.00 TH/s	$3056.03 ≈ 88554.84 QUAI	$1812.11
eCash	200.00 TH/s	$2643.21 ≈ 376525540.27 XEC	$1399.29
Fractal Bitcoin	200.00 TH/s	$2633.56 ≈ 5717.21 FB	$1389.64
Bitcoin	200.00 TH/s	$2581.03 ≈ 0.03405 BTC	$1337.11
BitcoinCash	200.00 TH/s	$2551.54 ≈ 5.74 BCH	$1307.62
Bitcoin SV	200.00 TH/s	$2473.54 ≈ 160.72 BSV	$1229.62
DigiByte	200.00 TH/s	$2066.56 ≈ 520608.84 DGB	$822.64
Bitcoin II	200.00 TH/s	$1022.48 ≈ 1931.38 BC2	$-221.44

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Quai SHA256

200.00 TH/s

Revenue

$3056.03 ≈ 88554.84 QUAI

Profit

$1812.11

eCash

200.00 TH/s

Revenue

$2643.21 ≈ 376525540.27 XEC

Profit

$1399.29

Fractal Bitcoin

200.00 TH/s

Revenue

$2633.56 ≈ 5717.21 FB

Profit

$1389.64

Bitcoin

200.00 TH/s

Revenue

$2581.03 ≈ 0.03405 BTC

Profit

$1337.11

BitcoinCash

200.00 TH/s

Revenue

$2551.54 ≈ 5.74 BCH

Profit

$1307.62

Bitcoin SV

200.00 TH/s

Revenue

$2473.54 ≈ 160.72 BSV

Profit

$1229.62

DigiByte

200.00 TH/s

Revenue

$2066.56 ≈ 520608.84 DGB

Profit

$822.64

Bitcoin II

200.00 TH/s

Revenue

$1022.48 ≈ 1931.38 BC2

Profit

$-221.44

Antminer S21 Specifications

Type: asic
Power: 3550 W
Hashrate: 200.00 Th/s
Noise level: 75 Db
Temperature: 5-40 °C
Manufacturer: Bitmain

Download Antminer S21 firmware

Kryptex × GMiner ASIC Firmware

Includes autotuning with customizable overclocking profiles, automatic profile switching based on temperature, real-time monitoring and recovery of chip performance, and manual fine-tuning of chip frequencies.

Explore & Download

Bitmain Antminer S21 Mining Profitability

The profitability chart shows the revenue from mining the most profitable coin on Antminer S21 on a given day minus the electricity costs.

$/kWh

Daily profit: $4.9647 242.6160 QUAI
Weekly profit: $34.7527 1698.3120 QUAI
Monthly profit: $148.94 7278.4801 QUAI
Annual profit: $1812.11 88554.8408 QUAI

Where to buy Bitmain Antminer S21

Looking to purchase a Antminer S21? We've compiled an up-to-date list of verified vendors and authorized retailers that offer Antminer S21 for sale. This curated selection includes both online shops and physical stores to help you make an informed buying decision.

Vendor	Country	Coupon
Leedminer	Worldwide	`Kryptex(–$50)`	Buy
Apexto Mining	PRC HongKong	`apextomining(–$30)`	Buy
Maxi Miners	Czech Republic	`KRYPTEX25(–$25)`	Buy
ASL Miner	Worldwide	`xgj967vh(–$20 (>1000$))`	Buy
ViperaTech	Canada	`KRYPTEX50(–$50)`	Buy
X-ON MINING	Worldwide	`kryptex20(–$20)`	Buy
Cooldragon	Worldwide	`kryptex-30usd(–$30)`	Buy
Jingle Mining	Worldwide	`KRYPTEX(–1%)`	Buy
Coin Mining Central	UK & US	`Kryptex25(–$25)`	Buy
Miner Bros	Worldwide	`KRYPTEX(–$50)`	Buy
ZC Miner	Worldwide	`Kryptex10(–$10)`	Buy
MineShop	Europe	`KRYPTEX(–3%)`	Buy
BT-Miners	US	`KRYPTEX(–$30)`	Buy
TopHash	UA, Worldwide	`kryptextop(–2%)`	Buy
OneMiners	USA, Worldwide	`KRYPTEX(–$25)`	Buy
MiningDelta	France		Buy