Antminer S21 XP Imm. evidence-limited identity record
Evidence-limited Antminer S21 XP Imm. identity record. Previous standalone specifications are withdrawn pending durable exact-model manufacturer evidence.
Latest Generation Hardware
This is a newer generation of mining hardware using recent ASIC chip technology. Compare efficiency, hashrate, and power draw against older generations before choosing a deployment plan.
Lower J/TH means lower electricity cost per unit of hashrate. Compare efficiency alongside purchase cost, noise, voltage, firmware support, and current network difficulty.
Full Specifications
| Model | Antminer S21 XP Imm. evidence-limited identity record |
|---|---|
| Model Number | Antminer S21 XP Imm. (specification unresolved) |
| Manufacturer | Bitmain |
| Status | Evidence-limited identity |
Evidence-limited identity record: Bitmain official model, warranty, parts, or power-supply records confirm the exact name Antminer S21 XP Imm.. The durable primary material reviewed does not provide a complete standalone specification substantiating the former 300T, 4,050 W, and 13.5 J/TH claims.
Former performance, power, efficiency, noise, physical, electrical, cooling, release, price, lifecycle, tuning, firmware, and commercial claims have therefore been withdrawn.
Confirmed evidence boundary
Manufacturer warranty and PSU records confirm the identity and associate it with APW11I1216-1a and P33-P33 within their stated scope. This evidence confirms identity only within its stated scope. It does not establish hashrate, wall power, efficiency, input topology, coolant or oil requirements, control board, firmware compatibility, recovery medium, or parts interchangeability.
Do not collapse nearby S21 names
Plus signs, the letter “e,” XP, Hyd., Imm., and 3U are part of the hardware identity. Do not transfer a PSU, hashboard, controller, firmware package, recovery image, liquid specification, facility design, or product listing from a similarly named S21 machine.
Evidence required before installation or service
Collect the complete physical nameplate, exact manufacturer document revision, PSU label, input rating and phase, controller marking, cooling connections, and installed version. A reseller title, calculator record, arithmetic inference, or similar chassis image is not adequate evidence.
Firmware, recovery, and repair
- Record the exact suffix, board, PSU, and installed version.
- The reviewed board-selection matrix does not list S21 models. Do not select another S21 package by analogy.
- For no boot, conflicting identity, package mismatch, interrupted writing, fluid exposure, leakage, instability, or electrical and thermal symptoms, request Antminer diagnosis.
Return to the audited S21 owner hub.
Primary evidence reviewed: Bitmain official warranty, PSU, power-cord, and model-name records. Reviewed August 27, 2026.