Bitmain Antminer t21

High Hashrate, High Efficiency

The Antminer T21 delivers 190 TH/s using the SHA-256 algorithm (for mining BTC, BCH, BSV) while consuming 3610 W, achieving a power efficiency of about 19 J/TH.

Power Requirements & Setup

This miner operates on 380-415 V AC input, frequency 50–60 Hz, with a maximum input current of roughly 12 A. It is generally deployed in setups with robust electrical infrastructure (often three-phase supply) to support stable operations.

Build, Cooling & Noise

It features dual fans for air cooling to maintain thermal stability under load. Noise level is approximately 75–76 dB. Designed for continuous operation in mining farms or commercial environments.

Physical Dimensions & Weight

• Size without packaging: ~400 × 195 × 290 mm

• Size with packaging: ~570 × 316 × 430 mm

• Net weight: ~16.4–17 kg

• Gross weight: ~18–19 kg

Operating Environment

• Optimal operating temperature: 0–45 °C

• Storage temperature: typically −20 to −40 °C up to ~70–85 °C depending on source

• Operating humidity: 10–90% RH, non-condensing

• Recommended maximum altitude: up to ~2000 m

Ideal For

• Medium to large-scale mining operations with access to high-voltage three-phase power

• Environments where power cost is well managed, since power draw is significant

• Situations where durability, uptime, and efficiency matter more than minimal noise or low power draw