Which one is right for you?

Bitmain Antminer S21 vs. WhatsMiner M66S++

Which one is better in 2025? In-depth comparison of Bitmain Antminer S21 and WhatsMiner M66S++

Bitmain Antminer S21 and WhatsMiner M66S++ are two popular asic miners with different costs, ease of use, and compatibility.

We've compared Bitmain Antminer S21 head-to-head with WhatsMiner M66S++ to help you decide which is best for your needs.

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Bitmain Antminer S21

Bitmain Antminer S21

WhatsMiner M66S++ (348 TH/s)

WhatsMiner M66S++

Algorithm
Hash Rate 200 TH/s 348 TH/s
Unit Power 17.5 J/TH 15.5 J/TH
Power Consumption 3500 W 5394 W
Cooling Air Air
Coins