AFRNDK Antminer S21+ 216T 3564W mining hardware

Bitcoin SHA-256 ASIC Miner

The AFRNDK Antminer S21+ is a dedicated Bitcoin mining machine built around the SHA-256 algorithm. It delivers a hashrate of 216T while drawing 3564W of power. The unit ships with an integrated power supply and connects via Ethernet for pool communication. It is intended for operators who need high-density SHA-256 compute in a single rack-mountable chassis.

Sustained Load Behaviour

Continuous operation at 216T holds the power draw at 3564W with a noise output of 75db from the dual-fan cooling system. The specified operating window is 10 to 40 °C ambient temperature and 10 to 90 % relative humidity. Stable 220V input is required; voltage outside this range can damage the hardware. Thermal throttling or shutdown will engage if the environment exceeds the stated limits.

Ethernet Interface Limits

The sole data link is a standard Ethernet port, so pool latency and bandwidth are bounded by the local network infrastructure. No wireless or secondary wired interfaces are present, meaning a wired uplink must be provisioned for each unit. Network congestion or switch saturation will directly reduce effective hashrate delivered to the pool. The miner does not expose any management interface beyond the standard stratum protocol over this single Ethernet connection.