Is the Bitmain Antminer S21+ (235Th) currently profitable?
At $0.12/kWh, the current estimate is -$1.57 per day after electricity. This is an estimated operating loss before pool fees, downtime, cooling, and other costs.
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⚡/ kWh
Bitmain
Bitmain Antminer S21+ (235Th)
SHA-256BTCProfitability data: Oct 13, 2026
Bitmain Antminer S21+ (235Th) is an ASIC miner for the SHA-256 algorithm with a rated hashrate of 235TH/s and a power draw of 3877W. At $0.12/kWh, its latest estimated gross mining revenue is $9.60 per day and electricity costs $11.17 per day, resulting in -$1.57 per day after electricity. Pool fees, downtime, cooling, and other operating costs are not included.
Gross Mining Revenue
$9.60
Hashrate
235TH/s
Electricity Cost
$11.17
Power
3877W
Net Profit After Electricity
-$1.57
Daily Mining Output
0.000117BTC
Daily estimates use $0.12/kWh. Pool fees, downtime, cooling, and other operating costs are excluded.
Bitmain Antminer S21+ (235Th) Profitability by Electricity Rate
Compare estimated daily operating cost and net mining profit before pool fees, downtime, cooling, and other expenses.
$0.05/kWh$4.65$4.95$148.45
$0.08/kWh$7.44$2.16$64.70
$0.10/kWh$9.30$0.30$8.87
$0.12/kWh$11.17-$1.57-$46.95
$0.15/kWh$13.96-$4.36-$130.70
30-Day Bitmain Antminer S21+ (235Th) Net Profit Trend
Last 30 daily snapshots for BTC at the current hashrate.
1 Week Net Profit-$9.88
Available Period Net Profit-$43.66
Projected 1-Year Net Profit-$531.14
2026-09-142026-10-13
Real-World Bitmain Antminer S21+ (235Th) Hashrate, Power and Noise Tests
Compare published specifications with measurements reported in 7 video sources.
Average Hashrate
238.38 TH/s
Spec: 235TH/s
Near +1.4% vs spec6 videos
Average Power
3745 W
Spec: 3877W
Near -3.4% vs spec6 videos
Average Noise
76.00 dB
Spec: -
N/A vs spec1 videos
Sources
Antminer S21+ 225T - Mais um CANHÃO da mineração passando no Canal !! – Unboxing + Review
Nerdola Miner2026-01-27
Hashrate224.30 TH/s
Power3750 W
Noise-
Обзор Antminer S21+ 235Th. Почему он особенный? Сравнение с S21, Pro, T21 и расчет против S23 Air
Майнинг.РФ2026-01-15
Hashrate235.00 TH/s
Power4000 W
Noise-
I Bought a Bitcoin Miner! S21 XP 270TH/s Unboxing & Specs
BearMarketMiner2025-12-18
Hashrate274.20 TH/s
Power3645 W
Noise-
ОБЗОР Antminer S21 Pro
LEOMINING2025-12-04
Hashrate245.00 TH/s
Power3650 W
Noise76.00 dB
Antminer S21+ против Whatsminer M61S+ — какой майнер лучше?
R7 | Мы майним2025-11-27
Hashrate235.00 TH/s
Power3800 W
Noise-
Купил АСИК под Биток Antminer S21+ Себе На Днюху
CryptoLeo2025-11-04
Hashrate216.80 TH/s
Power3625 W
Noise-
BTC Mining Pools for Bitmain Antminer S21+ (235Th)
Visible pools that support BTC; verify current fees and payout terms with each pool before mining.
Frequently Asked Questions About Bitmain Antminer S21+ (235Th)
Answers use the specifications and latest data displayed on this page.
How much electricity does the Bitmain Antminer S21+ (235Th) use?
Its published power draw is 3877W, equal to approximately 93.05 kWh over 24 hours at continuous load.
What can the Bitmain Antminer S21+ (235Th) mine?
The Bitmain Antminer S21+ (235Th) is designed for the SHA-256 algorithm. The latest eligible profitability dataset uses BTC for the estimate shown above.
What is the power efficiency of the Bitmain Antminer S21+ (235Th)?
Based on the published hashrate and power draw, its calculated efficiency is 16.5 J/TH. Lower energy use per unit of hashrate generally reduces electricity cost for the same mining output.
Compare Bitmain Antminer S21+ (235Th) with Similar ASIC Miners
Compare miners using the same SHA-256 algorithm with the closest published hashrates.
Estimates depend on network conditions, coin prices, hardware performance, and electricity rates. Verify current inputs before making purchasing or operating decisions.