BitcoinOverview
The Bitmain Antminer S21+ Hyd (358Th) is a SHA-256 ASIC miner from Bitmain built to mine Bitcoin. It delivers 358Th/s at 5,370 W — an efficiency of 15.0 J/Th, and was released in 2025-08.
Key Features
- 358Th/s of SHA-256 hashrate for Bitcoin
- 5,370 W rated power draw, 15.0 J/Th
- Rated noise level around 50 dB — plan for a dedicated space or hosting
- Standard stratum pool support; mines to any pool and wallet you choose
- Buy outright and host with us, or have it shipped to your address
Technical Specifications
| Manufacturer | Bitmain |
| Model | Bitmain Antminer S21+ Hyd (358Th) |
| Algorithm | SHA-256 |
| Coin | Bitcoin |
| Hashrate | 358Th/s |
| Power | 5,370 W |
| Efficiency | 15.0 J/Th |
| Noise | ~50 dB |
| Condition | New |
Mining Profitability
Earnings depend on Bitcoin price, network difficulty and your electricity rate, and are never guaranteed. Use our profit calculator with your own power price, or compare this machine against everything we stock on the profitability ranking. The single biggest lever is your kWh rate — our hosting facilities run on some of the cheapest industrial power available.
What's in the Box
- Bitmain Antminer S21+ Hyd (358Th) miner unit
- Power supply (as supplied by the manufacturer for this model)
- Quick-start documentation
Why Buy from BullMiners?
- You own the hardware — it is your machine, identified by serial number.
- Host it or ship it — rack it in one of our facilities on cheap power, or have it delivered to you.
- Keep 100% of every coin — your pool, your wallet; we never custody your mining rewards.
- Support before and after — setup guidance, pool configuration and hosting management.
- Crypto checkout — pay in Bitcoin, stablecoins or 25+ other currencies.