Antminer S21 XP

Air-cooled S21 XP–class Bitcoin miners sit in the efficiency band OEMs marketed heavily post-S19 generations—use them when you already run filtered cold aisles and can absorb rear-exhaust temperatures typical of modern 200–240 V fleets. Nominal terahash, joules per terahash, and acoustic signature change with batch and firmware—your acknowledgment letter is the binding document.

Deployment

• Burn-in on a quarantine VLAN; validate pool payouts before DNS cutover.
• Measure actual inlet vs. hot-spot with calibrated probes quarterly.
• Stock hot-swap fans where lead times exceed your MTTR target.

Public spec context

Third-party aggregators often quote mid-200s–300s TH/s-class numbers for XP air SKUs depending on batch—treat those as conversation starters, not warranties of performance.

Pricing & ordering

Reference list price

$3,999.00

Tiers, Incoterms & notes

Commercial terms: The list price shown here is a reference only. Volume tiers, Incoterms, payment milestones, factory lead times, and final serial-matched specs must come from your written quotation or distributor acknowledgement—not from third-party marketing pages. Performance charts: Add PNG, JPEG, WebP, or SVG exports (e.g. hashrate or efficiency vs. inlet temperature) under /images/Bitcoin Miner/S21 XP/charts/ on the server. They appear automatically in Performance & curves; files sort alphabetically by name. Run php wp-content/themes/bitsmain/bin/generate-catalog-charts.php from the site root to create illustrative SVG placeholders.

Specifications

SKU	BM-880A1A484A

Operations & deployment

Plan rack or shelf loading, cable management, and thermal containment before arrival. Mining hardware ships at high density—verify floor loading, PDU headroom, and fire-system suitability with your building engineer. SHA-256 systems exhaust substantial heat; maintain cold-aisle discipline and staged firmware rollout on a bench host before production.

• Run burn-in on clean power with logging before joining high-value pools.
• Document serials, batch codes, and receipt photos for warranty and insurance.
• Maintain spare fans, cables, and controller boards where lead times are volatile.

Ordering, logistics & compliance

Commercial terms, Incoterms, VAT/GST treatment, and import classification are quoted per order. Freight may require fork-truck offload, liftgate service, or customs brokerage depending on lane and carton weight.

• Lead times and allocations change with fab schedules—confirm on the written order acknowledgement.
• End-use and sanctions screening may apply; customers are responsible for lawful deployment.
• Returns are handled per warranty policy; cosmetic tolerance varies by transport mode.

Support & warranty orientation

Manufacturer warranty windows, RMA paths, and advance replacement rules are defined on your invoice and manufacturer policy. Keep packaging for DOA claims when required.