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Bitmain Antminer S21+ Hyd (358Th)
Hashrate358 TH/s
Power5,370 W
Efficiency15.0 J/TH
ReleaseAug 2025
Noise50 dB

Bitmain Antminer S21+ Hyd (358Th)

Bitmain · SHA-256 · Mines BTC

Hashrate · Air
216 TH/s 3,564 W · from $1,210225 TH/s 3,712 W · from $1,305235 TH/s 3,877 W · from $1,457
Hashrate · Hydro
319 TH/s 4,785 W · from $1,680338 TH/s 5,070 W · from $2,099358 TH/s 5,370 W · from $2,129395 TH/s 5,925 W · from $2,499
+$8.39profit a day
$251.76a month
254 daysto pay back at the best price

28 offers from $2,129

OneMiners ★ Featured ✓ Verified seller Extended warrantyPay in instalmentsIn stock, fast delivery Antminer S21+ Hyd - 358 TH/s 216 TH/s $1,599225 TH/s $1,307235 TH/s $1,699338 TH/s $2,099358 TH/s $2,299395 TH/s $2,499 Host with them from $0.0364/kWh, $143 a month Ships from United States · checked 25 h ago
✓ In stock
$2,299 274 days payback · $6.42/TH
Go to shop
Miners1688 Bitmain Antminer S21+ Hyd 358T 395T 4785W Bitcoin Miner 216 TH/s $1,339225 TH/s $1,440235 TH/s $1,551358 TH/s $2,129395 TH/s $2,568 Ships from Hong Kong · checked 31 h ago
✓ In stock
Best price$2,129 254 days payback · $5.95/TH
Go to shop
LeedMiner ✓ Verified seller Antminer S21+hyd - 358 TH/s 216 TH/s $1,210225 TH/s $1,305235 TH/s $1,457358 TH/s $2,255 Ships from China · checked 25 h ago
✓ In stock
$2,255 269 days payback · $6.30/TH
Go to shop
Letine Mining Ships from China · checked 16 h ago
✓ In stock
$2,255 269 days payback · $6.30/TH
Go to shop
ZC Miner Bitmain Antminer S21+ Hyd (358TH/s) Bitcoin Miner · 338T 216 TH/s $1,500225 TH/s $1,560235 TH/s $1,670319 TH/s $1,680358 TH/s $2,270395 TH/s $2,690 Ships from Hong Kong SAR China · checked 15 h ago
✓ In stock
$2,270 271 days payback · $6.34/TH
Go to shop
Yesmining ✓ Verified seller BITMAIN Antminer S21+ HYD 319 / 358 / 395T BTC Bitcoin Miner 216 TH/s $1,318225 TH/s $1,328235 TH/s $1,457319 TH/s $2,042358 TH/s $2,291395 TH/s $2,568 Host with them from $0.07/kWh, $274 a month Ships from China · checked 9 h ago
✓ In stock
$2,291 274 days payback · $6.40/TH
Go to shop

Selling this miner? List your offer

Where to run it

All-in hosting rates for this 5,370 W machine, and the profit left at today's income. Ask the host whether the site takes hydro or immersion machines.

NigeriaOneMiners ★ Featured Natural gas33 MW $0.0364/kWh$143 a month +$8.39 / daypays back in 254 days See hosting
EthiopiaOneMiners ★ Featured Hydro40 MW $0.0399/kWh$156 a month +$7.94 / daypays back in 269 days See hosting
UAE - Dubai and Abu DhabiOneMiners ★ Featured DubaiNatural gas34 MW $0.042/kWh$165 a month +$7.67 / daypays back in 278 days See hosting
YguazúThe Mining Shop UK ✓ Verified Mixed renewables $0.04/kWh$157 a month +$7.93 / daypays back in 269 days See hosting
NigeriaKentino ✓ Verified 13 MW $0.048/kWh$188 a month +$6.90 / daypays back in 309 days See hosting
The Mining Future hosting Mexico (Calpulalpan)The Mining Future Calpulalpan3 MW $0.058/kWh$227 a month +$5.61 / daypays back in 380 days See hosting

Compare all 107 hosting sites

Your numbers

The calculator from our free widget: every payback on this page follows it.

Income a day
$13.08
Power a day
−$4.69
Hosting a day
—
Profit a day
$8.39
Payback at $2,129
—

Profit and payback are estimates from today's coin prices and network difficulty, before pool fees, hosting and taxes. They change every day. Not financial advice.

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Profit at $0.0364/kWh

PeriodIncomeElectricityProfit
Day$13.08−$4.69$8.39
Week$91.58−$32.84$58.74
Month$392.50−$140.74$251.76
Year$4,775−$1,712$3,063

Income vs electricity · 128.9 kWh a day · at today's BTC price and difficulty

Profitable up to$0.102/kWhBreak-even electricity price
Break-even BTC price $29,144 64% below today's price

This 358 TH/s version of the hydro-cooled Bitmain Antminer S21+ Hyd mines SHA-256 coins such as BTC, BCH and BSV. Released in August 2025, it uses 5370 W at 15 J/TH.

Profit by coin

Every coin this miner can mine, at today's prices and difficulty · $0.0364/kWh

CoinMined per dayIncome / dayProfit
PPC 149 PPC $44.51 $39.82
BC2 166 BC2 $16.84 $12.14
XEC 2,119,605 XEC $14.18 $9.49
BCH2 534 BCH2 $13.35 $8.66
BSV 0.729 BSV $13.17 $8.47
BTC Rated on 0.000161 BTC $13.08 $8.39
BCH 0.0424 BCH $12.28 $7.59
FB 15.3 FB $5.59 $0.90

Rankings use the algorithm's main coin (BTC for SHA-256, LTC + DOGE for Scrypt): small side chains may pay more per hash today but can't absorb much hashrate.

Price history

━ Average price   ━ Lowest price

Specifications

ManufacturerBitmain
ModelBitmain Antminer S21+ Hyd (358Th)
Also known asAntminer S21+ Hydro 358T
ReleaseAug 2025
AlgorithmSHA-256
Hashrate358 TH/s
Power5,370 W
Efficiency15.0 J/TH
Noise50 dB
Size410 × 170 × 209 mm
InterfaceEthernet
Temperature5–45 °C
Humidity5–95 %

Mineable coins

BCHBSVBTCFBNMCPPCQUAIXEC

About this miner

The Bitmain Antminer S21+ Hyd (358Th) is an ASIC miner by Bitmain for the SHA-256 algorithm, rated at 358 TH/s on 5,370 W. It came out in August 2025. At 15.0 J/TH it is 26% more efficient than the median SHA-256 miner we track (20.4 J/TH). At $0.036/kWh it ranks #48 of 299 SHA-256 miners by daily profit, earning about $8.39 a day mining BTC. The best price on AsicProfit is $2,129. At today's rates it would pay for itself in about 254 days. It is water-cooled (hydro), so it needs a cooling loop and a dry cooler instead of fans.

Questions and answers 6

Ask about this miner. Verified accounts ask and answer, sellers answer as their store, and every post is checked before it shows.

Mikkel J. · Oct 19, 2026 · about another version

What is the difference between the S21+ air versions and the S21+ Hyd versions on this page?

AsicProfit Support AsicProfit · Oct 20, 2026

They are different machines. The air-cooled S21+ runs on single-phase 220 to 277 V with fans. The S21+ Hyd is water cooled and needs a three-phase 380 to 415 V supply, a coolant loop with 8 to 10 L/min of flow, and a dry cooler or similar heat exchanger. In return the Hyd gives much more hashrate per unit, and Bitmain rates the 358 TH/s Hyd at 15 J/TH. The numbers in each version name are the rated hashrate bins.

Andrus T. · Oct 14, 2026 · about another version

What water do I put in the S21+ Hyd loop? Can I just use tap water?

AsicProfit Support AsicProfit · Oct 14, 2026

Do not use tap water. Bitmain lists antifreeze, pure water or deionized water as working coolants, each with its own pH window: antifreeze 7.0 to 9.0, pure water 6.5 to 7.5, deionized water 8.5 to 9.5. Keep the inlet between 20 and 50 C, flow at 8 to 10 L/min and pressure at or below 3.5 bar. Where frost is possible, Bitmain says to use antifreeze rather than pure water.

Pablo G. · Oct 6, 2026 · about another version

My S21+ mines for a few minutes then stops and shows a board error. Is it dead?

AsicProfit Support AsicProfit · Oct 6, 2026

Not necessarily. Owners on Bitcointalk report this with S21+ units and often trace it to one hashboard, a loose data or power connection, or damage from rough shipping. Test one board at a time: power down, disconnect one board's data cable and power, and see whether the rest run. Check the kernel log for chip counts on each chain. If the unit is still under warranty, contact the seller before opening it.

Chris E. · Sep 30, 2026 · about another version

What warranty comes with an S21+? I'm not buying straight from Bitmain.

AsicProfit Support AsicProfit · Sep 30, 2026

Bitmain gives 365 days from the shipping date on the S21+ and S21+ Hyd, but only to the original buyer who bought directly from Bitmain. If you buy from a reseller, the reseller is responsible for the warranty, so ask them for the terms in writing before paying. Running the miner outside Bitmain's specified conditions, or changing settings without approval, can void cover.

Tomas K. · Sep 29, 2026 · about another version

how loud is the S21+ really? thinking of putting one in my garage

AsicProfit Support AsicProfit · Sep 29, 2026

Bitmain rates the air-cooled S21+ at 76 dBA at full fan speed, which is about as loud as a busy vacuum cleaner and runs around the clock. A detached garage or outbuilding works for many owners, but it is too loud for living space. Owners on forums say enclosures and ducting can take some of the edge off, but every enclosure still has to move a lot of air, so heat and airflow must come first.

Jan D. · Sep 15, 2026 · about another version

Can I plug the air-cooled S21+ into a normal wall socket, or do I need something special?

AsicProfit Support AsicProfit · Sep 16, 2026

You need a 220 to 277 V single-phase supply. Bitmain lists a maximum input current of 20 A for the 216 TH/s unit, so plan a dedicated circuit sized for it rather than a shared household socket. The machine ships with a C20 power cord. A 110 to 120 V outlet will not work, and Bitmain warns that the wrong input voltage can damage the unit. Have an electrician check the circuit, breaker and plug before you switch it on.

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