Bitmain Antminer U3S21EXPH vs. WhatsMiner M66S

Which one is better in 2026? In-depth comparison of Bitmain Antminer U3S21EXPH and WhatsMiner M66S

Bitmain Antminer U3S21EXPH and WhatsMiner M66S are two popular asic miners with different costs, ease of use, and compatibility.

We've compared Bitmain Antminer U3S21EXPH head-to-head with WhatsMiner M66S to help you decide which is best for your needs.

	Select a product	Select a product
	Bitmain Antminer U3S21EXPH Request for quote	WhatsMiner M66S Request for quote
Algorithm	SHA256	SHA256
Hash Rate	860 TH/s	286 TH/s
Unit Power	13 J/TH	18.5 J/TH
Power Consumption	11180 W	5291 W
Cooling	Air	Air
Coins	Bitcoin (BTC) Bitcoin Cash (BCH) Bitcoin SV (BSV)	Bitcoin (BTC) Bitcoin Cash (BCH) Bitcoin SV (BSV)