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Bitmain Antminer S21 XP Immersion 300Th/s Bitcoin ASIC Miner, SHA-256 ASIC
Pay in BTC, save 3%














If you're operating at scale and your facility is wired for liquid cooling, the MicroBT WhatsMiner M63S 390Th/s Bitcoin ASIC Miner is one of the most efficient ways to convert power into bitcoin. Built for the SHA-256 algorithm and Bitcoin (BTC) mining, this hydro-cooled unit is engineered for sustained peak output without thermal throttling.
Here's what you actually get. The Bitcoin ASIC delivers 390 TH/s of hashrate at 18.5 J/TH efficiency, and efficiency is the number that decides whether your operation is profitable at any given power cost. Anywhere above $0.06/kWh, the efficiency gap between this unit and older hardware compounds into real revenue over a year of uptime.
What hydro-cooling actually means for you in practice: continuous peak operation without thermal throttling, dramatically extended hardware lifespan, and the option to recapture waste heat for facility heating or industrial applications. Hydro units typically run quieter than air-cooled equivalents too, which gives you more flexibility on where the facility lives. If your power budget is fixed and you want maximum BTC produced inside that envelope, hydro is the answer.
Available now at The Miner Island with free DDP shipping over $5,000 and a 3% Bitcoin discount. Every miner is bench-tested for hashrate stability before it leaves our facility, you'll never receive an unverified unit. Reach us on WhatsApp for bulk-order pricing.
| Algorithm | SHA-256 |
|---|---|
| Hashrate | 390 TH/s Β±5% |
| Power Consumption | 7215 W Β±5% |
| Efficiency | 18.5 J/TH |
| Noise Level | 50 dB |
| Dimensions | 483 Γ 663 Γ 86 mm |
| Weight | 27.5 kg |
| Interface | Ethernet |
| Temprature | 5 β 40 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.