-58%Bitmain Antminer
USED Antminer S21 Hyd 335Th
4.8 / 5 · 23 verified buyer ratings
- Hashrate
- 335 TH/s
- Algorithm
- SHA-256
- Cooling
- Hydro Cooling
- Condition
- Used
- 90-day tested warranty on used units
- Worldwide DDP shipping with customs handled
- Bank wire, USDT, USDC and major coins — see options
Built for mining Bitcoin (BTC), Bitcoin Cash (BCH), and Bitcoin SV (BSV), this miner utilizes an advanced hydro-cooling system and a high-efficiency power supply to ensure quiet, stable, and environmentally conscious performance—even under the most demanding workloads.
A: Due to its hydro requirements and 3-phase power, it’s ideal for industrial mining farms or data centers.
A: The miner features hydro-cooling compatibility, but external systems must be purchased separately.
A: Yes, any SHA-256 algorithm coin, including Bitcoin Cash (BCH) and Bitcoin SV (BSV).
If you’re serious about profitable, long-term mining, the Antminer S21 Hydro delivers top-tier performance, low power consumption, and advanced cooling—ready to transform your mining operation from the ground up.
Planning deployment? Dense hydro cooling builds are covered in our hydro cooling and immersion cooling guides, and hosting capacity is available if you do not have your own power contract yet.
Related hardware
Bitmain Antminer S23 Hyd 580Th/s 5510W Bitcoin Miner Hydro Cooling
- Hashrate
- 580Th
- Power
- 5510W
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