Antminer S21 Pro vs S19k Pro: One New Machine, or Nine Used Ones?
One new Antminer S21 Pro 245T costs the same as nine used S19k Pros once freight is counted. We ran both baskets on our own shelf prices and a chain snapshot taken this morning, and the window where the new machine is the better buy turns out to be 0.55 cents per kilowatt-hour wide.