Description
This speed controller is often used to upgrade the S21 air-cooled miner into a water-cooled miner or to install a silencer.
It is a 4-in-1 speed controller, and an S21 miner only needs a speed controller.
Is a device that tricks an ASIC miner into thinking its cooling fans are running at the normal speed, allowing for more efficient cooling methods without triggering a safety shutdown or error message.
