Antminer S21+
Antminer S21+ is an ASIC miner from Bitmain Antminer targeting the SHA-256 algorithm with a rated hashrate of 216 TH/s and 3564W power draw. Released in 2025. On this page we collect every official firmware release, manual, SD-card recovery image, and adjacent utility we have for the miner. Files are served as-is. Direct download links point at our CDN. Before flashing, skim the release notes for the version you pick (if any).
No files available yet. They will be added after the firmware scan.
Miners Tools — open ASIC miner firmware archive.
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