Product Overview

The Bitmain Antminer S21e Hydro 332T is a hydro-cooled Bitcoin (BTC) SHA-256 ASIC miner delivering 332 TH/s at approximately 3,652W. Part of Bitmain’s S21e hydro-cooled series, the S21e Hydro 332T uses a liquid cooling manifold to remove the thermal constraints of air-cooled designs — enabling sustained high hashrate performance at competitive efficiency while operating near-silently.

The S21e series offers a step up in hashrate from the 310T variant while maintaining similar efficiency characteristics within the S21e platform. At 11 J/TH, the S21e Hydro 332T provides competitive energy consumption for Bitcoin mining at its hashrate tier. The hydro-cooling architecture eliminates the need for high-speed fans, allowing substantially higher sustained hashrate than air-cooled equivalents in the same power class.

For South African operators, the S21e Hydro 332T is exclusively suited to large-scale commercial mining operations with purpose-built hydro-cooling infrastructure and industrial electrical supply. The cooling loop requirement — circulation pumps, piping, heat exchangers, and external heat rejection — represents significant additional infrastructure investment beyond the mining hardware itself.

Key Features

• 332 TH/s SHA-256 Hashrate (±3%): High Bitcoin mining output enabled by hydro-cooling. Sustained performance without the thermal throttling that constrains air-cooled alternatives.
• Hydro-Cooled Architecture: Closed-loop liquid cooling manifold replaces fans. Requires external cooling infrastructure (dry cooler or cooling tower, circulation pumps, piping).
• ~11 J/TH Power Efficiency: Competitive efficiency within the S21e hydro series at this hashrate tier.
• 3,652W Power Consumption: High power draw requiring multi-phase electrical infrastructure.
• Near-Silent Operation: No high-speed fans — the S21e Hydro 332T operates near-silently compared to air-cooled miners.
• S21e Platform: Bitmain’s energy-efficient hydro-cooled tier, offering a balance of hashrate and operational efficiency.
• Standard Ethernet Management: Compatible with major Bitcoin mining pools and management platforms.

Technical Specifications

• Algorithm: SHA-256
• Supported Coins: Bitcoin (BTC), Bitcoin Cash (BCH), and other SHA-256 cryptocurrencies
• Hashrate: 332 TH/s (±3%)
• Power Consumption: ~3,652W (±5%)
• Power Efficiency: ~11 J/TH
• Cooling Type: Hydro-cooled (liquid cooling loop required)
• Noise Level: Near-silent (no fans)
• Input Voltage: 200–240V AC, 50/60 Hz
• Networking: 1× RJ45 Ethernet
• Power Supply: Confirm inclusion at time of purchase

Power & Installation Notes

The Antminer S21e Hydro 332T draws approximately 3,652W continuously. This unit requires multi-phase electrical supply and a high-amperage dedicated circuit, all certified by a registered electrician in compliance with SANS 10142. South Africa’s 230V / 50Hz supply is compatible, but the power draw demands industrial-grade electrical infrastructure.

The hydro-cooling loop is the primary additional installation requirement: circulation pumps, coolant piping, heat exchanger manifold connected to the miner, and an external dry cooler or cooling tower to reject heat. This infrastructure must be designed and installed by specialist hydro-cooling integrators. Total installation cost can be substantially more than the miner hardware alone.

Load shedding at 3,652W cannot be managed with any inverter system. Commercial generator capacity is required for operations that need to continue through South African power outages.

Electricity Cost Context — South Africa

At R2.80/kWh reference tariff, the estimated monthly electricity cost is:

(3652 ÷ 1,000) × 24 × 30 × 2.80 = R7362.43 per month

This is an operating cost estimate only. Commercial and industrial electricity tariffs vary significantly from the residential reference figure. The S21e Hydro 332T’s efficiency translates to competitive cost per TH/s at scale.

Ideal Use Cases

• Large-scale commercial Bitcoin mining: Designed for professional operations with dedicated hydro-cooling infrastructure and industrial electrical supply.
• High-density Bitcoin mining facilities: Hydro-cooled miners enable more TH/s per square metre than air-cooled equivalents.
• Noise-sensitive commercial deployments: Near-silent operation is suitable for facilities where ASIC fan noise is a constraint.
• Renewable energy Bitcoin mining: South African operations with cost-effective PPA or wheeling arrangements can leverage the S21e Hydro 332T’s efficiency for competitive mining economics.

Frequently Asked Questions

Does the S21e Hydro 332T require special plumbing?
Yes — a complete closed-loop liquid cooling system is required, including pumps, piping, heat exchanger manifold, and external heat rejection. Specialist installation is necessary.

Is this suitable for home mining?
No. The hydro-cooling requirement, high power draw, and commercial facility requirements make this exclusively suited to large-scale commercial operations.

Can it handle South African load shedding?
Not without commercial generator capacity. At 3,652W, no standard inverter system can sustain this unit during load-shedding outages.

What pool should I use?
Major SHA-256 Bitcoin pools include Foundry USA, AntPool, ViaBTC, F2Pool, and Binance Pool. Configure via the miner’s web interface.

Is the PSU included?
Confirm at time of purchase.

What’s Included

• 1× Bitmain Antminer S21e Hydro 332T mining unit
• Cooling manifold/connections (confirm specifications at time of purchase)
• Power supply (confirm inclusion at time of purchase)
• Power cables
• Quick-start documentation