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Bitmain Antminer S21 (200Th) Antminer S21 200T

Model: Antminer S21

Used

200 TH/s air cooled SHA-256 at 3,550W. 17.8 J/TH, 100 to 240V universal. Bitmain S21 top air cooled standard tier. Ships from MillionMiner.

200 TH/s 3550W SHA-256 17.75 J/TH

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Quantity

Total Price

$1,402.23

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Pay with: Bank Transfer | BTC | ETH | USDT

Genuine

Tested hardware

Worldwide

Global shipping

Support

Mining experts

Hashrate

200 TH/s

Power

3550 W

Efficiency

17.75 J/TH

Noise

75 dB

Estimated Mining Returns

Based on current BTC price & network difficulty. Indicative only.

Period Daily Weekly Monthly
Income
$8.63 $60.41 $258.90
Electricity
-$6.82 -$47.74 -$204.60
Profit
$1.81 $12.67 $54.30

Using 0.080 $/kWh · Network difficulty as of today. Estimates only.

Adjust rate in the bar above

Updated daily. Last refresh: Apr 21, 2026. Estimates at $0.08/kWh.

Full Specifications

Hashrate 200 TH/s
Power Consumption 3550 W
Efficiency 17.75 J/TH
Algorithm SHA-256
Model Antminer S21
Release Year Feb 2024
Noise Level 75 dB
Dimensions 400 x 195 x 290mm
Weight 13.5 kg
Voltage 100-240V
Interfaces Ethernet
Operating Temp 5 - 40 °C
Humidity 5 - 95 %
Cooling Type Air

What's in the Box

Antminer S21
Power supply unit (PSU)
Power cables
Quick start guide

Contents may vary by batch. Exact items listed in order confirmation.

Quick Setup

1

Connect PSU to miner and plug into the outlet

2

Connect ethernet cable to your router or switch

3

Find miner IP via router admin or IP scanner tool

4

Open web interface, enter pool URL and wallet — start mining

Product Details

Bitmain Antminer S21 200TH Top Standard Air Cooled SHA-256 Bitcoin Miner

Top bin of the base S21 model. 200 TH/s at 3,550W on universal 100 to 240V. At 17.8 J/TH, this sits above the S21 PRO (234 TH/s, 15.2 J/TH) and below the S21+ (235 TH/s, 16.5 J/TH) on efficiency, placing it at the lower end of the S21 generation spectrum.

The S21 product family spans a wide range: T21 budget (190 TH/s), base S21 (195 to 200 TH/s), S21 PRO (234 TH/s), S21+ (235 TH/s), S21 XP (270 TH/s), and S21 XP+ (various bins up to 395 TH/s hydro). Understanding where your specific model sits matters because the efficiency spread across this family is substantial.

Daily electricity at $0.07 per kWh: $5.96. Monthly: $179. Universal voltage means worldwide deployment flexibility. 75 dB standard industrial. 13.5 kg in the familiar Antminer chassis. Bitmain firmware ecosystem with fleet management and potential third party optimization through Braiins OS.

This 200 TH/s model is the highest output base S21 bin before the PRO and + designations add enhanced chip performance. For fleet operators, the question is whether the per unit price premium for S21 PRO or S21+ models justifies the efficiency improvement over this base top bin.

Ethernet connectivity. 5 to 45 degrees Celsius. Standard Stratum for all SHA 256 Bitcoin mining pools. The S21 generation bridges the gap between legacy S19 era hardware and the current S23 generation, offering mid generation efficiency at what should be mid generation pricing.

Antminer S21 200TH Top Standard Air Cooled Bitcoin Miner

Top bin S21 at 200 TH/s and 3,550W on universal 100 to 240V. Above the 195 TH/s (12V DC) and 188 TH/s (220 to 277V) bins. Highest output in the original S21 air cooled lineup. Bitmain Antminer firmware. 75 dB at 15 kg.

Air cooled at 75 dB. Bitcoin, Bitcoin Cash, all SHA 256. Bitmain firmware. 400 x 195 x 290mm at 13.5 kg. Ethernet. 5 - 40 °C.

Industrial 75 dB requires dedicated mining space. Warehouses, containers, or isolated rooms.

Bitmain firmware for pool configuration and monitoring. Evaluate pricing against competing models. Total deployed hashrate determines total coins mined.

Industrial 75 dB demands dedicated mining space. Warehouses, containers, isolated rooms. 3550W of heat requires ventilation.

Bitmain firmware for pool configuration. Evaluate pricing against competitors. Total deployed hashrate determines production. Model conservatively.

Need Help Choosing?

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Antminer S21 200TH BTC Miner

Industrial SHA-256 from Bitmain. 200 TH/s at 3550W and 75 dB. 100-240V. 13.5 kg. Bitcoin, Bitcoin Cash, all SHA 256. Ethernet. Bitmain. Compare pricing. Total cost of ownership determines value at your electricity rate. Factor acquisition and deployment duration. Model profitability at your electricity rate. Bitmain firmware and support ecosystem. Compare with competing models at this tier. Evaluate acquisition cost plus daily electricity over deployment period.

200 TH/s Top Standard S21

Maximum hashrate from the standard S21 tier. Best performance before S21+ pricing.

Universal Deployment

100 to 240V with broad environmental tolerance. Deploy anywhere worldwide.

Free DDP Worldwide

Ships from MillionMiner with Bitmain warranty and free DDP delivery.

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FAQ

Frequently Asked Questions

200 TH/s SHA-256 at 3,550W. 17.5 J/TH. The standard Antminer S21 — solid Bitcoin miner with good efficiency.

S21 XP: 270 TH/s at 13.5 J/TH. S21: 200 TH/s at 17.5 J/TH. XP is more efficient but costs more.

Yes. Free DDP shipping.