What hashrate does the Bitmain Antminer S21 (188 TH/s) deliver?

188 TH/s SHA-256 at 3290.00W. Bitcoin miner from Bitmain.

What coins can it mine?

All SHA-256 cryptocurrencies: Bitcoin (BTC), Bitcoin Cash (BCH), BSV, eCash (XEC).

Does MillionMiner offer free shipping?

Yes. Free worldwide DDP shipping to 50+ countries. Genuine hardware with warranty.

Does MillionMiner offer hosting?

Yes. Professional Bitcoin miner hosting from $0.055/kWh with 99.9% uptime and 24/7 monitoring.

Antminer S21 188TH Bitcoin Miner

Name: Bitmain Antminer S21 (188 TH/s)
Brand: Bitmain
SKU: MM2026BITMAINANTMINERS21188
Availability: OutOfStock
Rating: 4.9 (15 reviews)

Period	Daily	Weekly	Monthly
Income	$7.11	$49.77	$213.30
Electricity	-$6.32	-$44.24	-$189.60
Profit	$0.80	$5.60	$24.00

Period

Daily

Weekly

Monthly

Income

$7.11

$49.77

$213.30

Electricity

-$6.32

-$44.24

-$189.60

Profit

$0.80

$5.60

$24.00

Bitmain Antminer S21 188TH Standard Air Cooled SHA-256 Bitcoin Miner

Lower bin S21 at 188 TH/s on 220 to 277V only. Not universal voltage. Not 12V DC. Standard AC input but restricted to the upper half of the voltage spectrum. This limits deployment to facilities with 220V+ power, which covers all commercial and industrial settings but excludes 110V residential without modification. 188 TH/s at 3,290W puts efficiency at about 17.5 J/TH, marginally below the 195 TH/s variant (17.4 J/TH). Both are S21 generation hardware competing on discounted pricing against the S23. The 7 TH/s difference between bins is about 4 percent, a gap that matters only when per unit pricing is nearly identical. Daily electricity at $0.07 per kWh: $5.53. Monthly: $166. 75 dB industrial. Ethernet. Bitmain Antminer firmware. The 220 to 277V restriction means this model runs on standard US commercial power (208V, 220V, 240V) and high commercial (277V) without issues. For fleet operators: compare pricing between this 188 TH/s 220V model and the 195 TH/s 12V model. Same generation. The 220V AC model is simpler (no external PSU). The 12V model may be cheaper per unit. Facility infrastructure determines which is easier to deploy. For fleet operators evaluating this specific model: compare acquisition cost per terahash against every alternative at similar hashrate. Factor $5.53 daily electricity into total cost of ownership over your planned deployment. The model delivering more Bitcoin per dollar of total investment (hardware plus electricity) over your deployment horizon is the correct purchase.

Antminer S21 188TH Standard Air Cooled Bitcoin Miner

Bitmain S21 standard bin at 188 TH/s and 3,290W on 220 to 277V. Below the top bin S21 (195 TH/s on 12V DC). Standard commercial voltage input. Original S21 generation now two generations behind the S23. Discount fleet pricing.

Air cooled at 75 dB. Bitcoin, Bitcoin Cash, all SHA 256. Bitmain firmware. 400 X 195 X 290mm at 15.4 kg. Ethernet. 5 - 35 °C.

Industrial 75 dB requires dedicated mining space. Warehouses, containers, or isolated rooms. Not for shared environments.

Bitmain firmware for pool configuration and monitoring. Evaluate pricing against competing models at this tier.

Industrial noise at 75 dB demands purpose built mining space. Warehouses, shipping containers, dedicated rooms with sound treatment, or hosting facilities. Plan for noise management in any deployment. 3290W of heat output also requires adequate ventilation or HVAC capacity to maintain operating temperatures.

Evaluate per terahash acquisition cost and daily electricity at your rate. Total fleet hashrate determines total coins mined. Model conservatively with current network data.

Antminer S21 188TH BTC Miner

Industrial SHA-256 from Bitmain. 188 TH/s at 3290W and 75 dB on 220-277V. 15.4 kg at 400 X 195 X 290mm. Bitcoin, Bitcoin Cash, all SHA 256. Ethernet. Bitmain. Compare pricing. Dedicated mining space required. Total cost of ownership determines value at your electricity rate. Factor acquisition and deployment duration. Bitmain firmware for pool configuration and monitoring. Total cost of ownership determines value. Factor acquisition plus daily electricity over planned deployment.

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