WhatsMiner M66S vs. Bitmain Antminer S21j XP

Which one is better in 2026? In-depth comparison of WhatsMiner M66S and Bitmain Antminer S21j XP

WhatsMiner M66S and Bitmain Antminer S21j XP are two popular asic miners with different costs, ease of use, and compatibility.

We've compared WhatsMiner M66S head-to-head with Bitmain Antminer S21j XP to help you decide which is best for your needs.

	Select a product	Select a product
	WhatsMiner M66S Request for quote	Bitmain Antminer S21j XP Request for quote
Algorithm	SHA256	SHA256
Hash Rate	286 TH/s	495 TH/s
Unit Power	18.5 J/TH	12 J/TH
Power Consumption	5291 W	5940 W
Cooling	Air	Hydro
Coins	Bitcoin (BTC) Bitcoin Cash (BCH) Bitcoin SV (BSV)	Bitcoin (BTC) Bitcoin Cash (BCH) Bitcoin SV (BSV)