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Bitmain Antminer S23 318Th/s Bitcoin ASIC Miner, Air-Cooled SHA-256
Pay in BTC, save 3%














If you're operating at hyperscale, datacenter mining, immersion-ready facilities, or large hosted farms, the Bitmain Antminer S21 XP+ Hyd is built for you. This is Bitmain's most powerful and most efficient hydro-cooled Bitcoin ASIC miner, designed for the SHA-256 algorithm and tuned for the kind of Bitcoin (BTC) mining operations where every joule per terahash matters to your bottom line.
The headline numbers are unusual: 500 TH/s of hashrate at just 5,500W, which lands at 11 J/TH efficiency. That's a class-leading number for any Bitcoin miner, air-cooled or otherwise, and it's only possible because of the OD10 hydro-cooling system that lets the chips run sustained at peak performance without thermal throttling. You're getting the densest hashrate-per-rack-unit Bitmain currently ships.
What hydro-cooling actually means for you: continuous peak operation, dramatically extended hardware lifespan, and the option to recapture waste heat for facility heating or industrial applications. The unit also runs around 50 dB, which is quiet enough that it doesn't dictate where your facility has to be located. If you're scoping a build-out and your power budget is fixed, this is the miner that produces the most BTC inside that envelope.
The S21 XP+ Hyd is sold direct through The Miner Island with free DDP shipping on orders over $5,000 and a 3% discount when you pay in Bitcoin. Bulk pricing is available on orders of 10+ units, message us on WhatsApp for a quote on container-scale deployments.
| Algorithm | SHA-256 |
|---|---|
| Hashrate | 500 TH/s Β±5% |
| Power Consumption | 5500 W Β±5% |
| Efficiency | 11 J/TH |
| Noise Level | 50 dB |
| Dimensions | 339 Γ 173 Γ 207 mm |
| Weight | 13.8 kg |
| Interface | Ethernet |
| Temprature | 20 β 50 Β°C |
| Humidity | 10 β 90% (non-condensing) |
Every order over $5,000 ships DDP-paid from our Hong Kong warehouse, so duties, taxes, and customs clearance are paid before the unit reaches you. You won't get a surprise invoice from the courier on delivery day.
Most orders dispatch within 24 to 72 hours of payment confirmation. Transit time runs 3 to 7 business days to North America, Europe, and the major mining jurisdictions. We share the tracking number the moment the airwaybill is issued.
Every unit carries a 60-day warranty from the date you receive it. Manufacturer warranties (typically 180 to 365 days depending on the brand) run in parallel and we'll help you process those claims directly with Bitmain, MicroBT, Canaan, Goldshell, IceRiver, or Elphapex.
If your unit arrives dead-on-arrival (won't power on, fails the initial hashrate test, or has visible transit damage), we replace it. Document the issue within 72 hours of delivery (a short video or photo set is enough), and we'll ship the replacement.
We accept Bitcoin, Ethereum, Litecoin, USDT, USDC, and a handful of other major cryptos through Plisio. Pay in any crypto and save 3% on your entire order. The discount applies automatically at checkout. For bulk orders over $25,000, message us on WhatsApp to discuss 50/50 staged crypto payment options.
Live estimate based on this unit's hashrate, efficiency, and coin price.
Network difficulty, coin price, and uptime all move. Treat this as a sanity-check, not a guarantee. Baseline issuance data is calibrated to May 2026; numbers drift as networks evolve. We're happy to walk through your specific power cost and target hashrate on WhatsApp.