WhatsMiner M66S++ vs. Bitmain Antminer S21 with Immersion Cooling

Which one is better in 2026? In-depth comparison of WhatsMiner M66S++ and Bitmain Antminer S21 with Immersion Cooling

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

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

	Select a product	Select a product
	WhatsMiner M66S++ Request for quote	Bitmain Antminer S21 with Immersion Cooling Request for quote
Algorithm	SHA256	SHA256
Hash Rate	348 TH/s	215 TH/s
Unit Power	15.5 J/TH	16 J/TH
Power Consumption	5394 W	3440 W
Cooling	Air	Immersion
Coins	Bitcoin (BTC) Bitcoin Cash (BCH) Bitcoin SV (BSV)	Bitcoin (BTC) Bitcoin Cash (BCH) Bitcoin SV (BSV)