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Bitmain Antminer S21 official reference

Bitmain Antminer S21 official reference

Hashrate 200.0 TH/s Power 3,500 W Efficiency 17.5 J/TH
VS
MicroBT WhatsMiner M60S

MicroBT WhatsMiner M60S

Hashrate 170.0 TH/s Power 3,145 W Efficiency 18.5 J/TH

Bitmain Antminer S21 official reference vs MicroBT WhatsMiner M60S

Side-by-side specs, profitability, and home mining comparison.

Quick verdict

For most buyers the Bitmain Antminer S21 official reference is the stronger pick — Slightly better efficiency in most configurations, plus wider aftermarket support. The Bitmain Antminer S21 official reference runs 200.0 TH/s at 17.5 J/TH; the MicroBT WhatsMiner M60S runs 170.0 TH/s at 18.5 J/TH.

Specs verified against the D-Central Mining Bible \xc2\xb7 August 2026

Specifications Comparison

Bitmain Antminer S21 official reference Specification MicroBT WhatsMiner M60S
200.0 TH/s Hashrate 170.0 TH/s
3,500 W Power Consumption 3,145 W
17.5 J/TH Efficiency 18.5 J/TH
Noise Level
15.4 kg Weight 11.5 kg
11,942 BTU/hr BTU Output 10,731 BTU/hr
Home Mining Score
Release Year
SHA-256 Algorithm SHA-256
Bitmain Manufacturer MicroBT

Profitability Comparison

$/kWh

Bitmain Antminer S21 official reference

Daily Revenue 0.00009994 BTC $7.98
Daily Electricity -$8.40
Daily Profit -$0.42
Monthly -$12.50
Yearly -$152.09

MicroBT WhatsMiner M60S

Daily Revenue 0.00008495 BTC $6.79
Daily Electricity -$7.55
Daily Profit -$0.76
Monthly -$22.87
Yearly -$278.20

Based on BTC price of $79,883 and current network difficulty as of Aug 28, 2026. Actual results vary.

Verdict

The top flagship SHA-256 miners from the two biggest ASIC manufacturers. Bitmain's S21 versus MicroBT's M60S — a rivalry that defines the current mining generation.

Both are excellent current-generation miners with competitive efficiency. The S21 typically edges out the M60S on efficiency, but MicroBT's build quality and cooling system are highly regarded. Availability and price at time of purchase often decide the winner.

Winner: Bitmain Antminer S21 official reference — Slightly better efficiency in most configurations, plus wider aftermarket support

Spec Deltas

Stripped to the numbers, this is how far apart the Bitmain Antminer S21 official reference and MicroBT WhatsMiner M60S sit on each measurable spec:

  • Bitmain Antminer S21 official reference 18% more hashrate (200 vs 170 TH/s)
  • MicroBT WhatsMiner M60S 10% better power draw (3,500 vs 3,145 W)
  • Bitmain Antminer S21 official reference 5% better efficiency (17.5 vs 18.5 J/TH)
  • MicroBT WhatsMiner M60S 25% better weight (15.4 vs 11.5 kg)
  • Bitmain Antminer S21 official reference 11% more heat output (11,942 vs 10,731 BTU/hr)

Best For...

Best for Profitability

Tie

Both miners produce similar daily profit.

Best for Home Mining

Tie

Both miners are equally suitable for home use.

Best for Efficiency

Bitmain Antminer S21 official reference

17.5 J/TH — lower electricity cost per unit of hashrate.

Frequently Asked Questions

Is the Whatsminer M60S as reliable as the Antminer S21?

MicroBT has a strong reliability track record. The M60S cooling system is well-engineered. Both are excellent machines — choose based on price and availability.

Can D-Central repair Whatsminer units?

Yes. D-Central services the full MicroBT Whatsminer lineup alongside Bitmain Antminers, with board-level diagnostics and repair capabilities.

Which has better resale value?

Antminers historically have a larger secondary market due to higher unit sales, which can mean slightly better liquidity. However, Whatsminers hold value well.