Product Overview

The Bombax EZ100 12500M is a high-output Ethash algorithm ASIC miner targeting Ethereum Classic (ETC) and other Ethash-compatible cryptocurrencies. Delivering 12,500 MH/s at 2,200W, the EZ100 12500M provides strong ETC mining throughput at a power draw that, while significant, is competitive for Ethash hardware at this hashrate tier.

Bombax is a mining hardware manufacturer targeting the mid-to-high performance segment of the Ethash market. The EZ100 series offers multiple hashrate configurations, with the 12500M representing the top-tier variant in the EZ100 lineup. Since Ethereum’s transition to proof-of-stake in 2022, Ethereum Classic remains the primary large-cap Ethash coin, making ETC-focused ASIC hardware the main application for this class of miner.

For South African operators interested in ETC mining, the EZ100 12500M offers a substantial hashrate in a single unit. Its 2,200W power draw sits in the range where proper electrical planning is required but does not mandate the same level of industrial infrastructure as the largest Bitcoin miners.

Key Features

• 12,500 MH/s Ethash Hashrate (±5%): High-output Ethereum Classic mining from a single unit. The 12500M is the top variant in the EZ100 series, delivering the maximum hashrate available in this chassis.
• 2,200W Power Consumption: Moderate-to-high power draw for an ETC miner. At this wattage, the EZ100 12500M requires a dedicated circuit but is manageable with properly sized residential or light commercial electrical infrastructure.
• Competitive Power Efficiency: At approximately 0.176 J/MH (176 W per GH/s), the EZ100 12500M offers reasonable Ethash efficiency for its hashrate class.
• Air-Cooled Design: High-speed fans maintain operating temperatures within range. Suitable for ventilated mining rooms or enclosed rack environments with active airflow management.
• Compact Industrial Form Factor: Designed for rack or shelf mounting in mining facilities. Physical dimensions allow for relatively dense deployment compared to some competing Ethash hardware.
• Standard Ethernet Interface: RJ45 Ethernet port for pool configuration, monitoring, and remote management. Compatible with standard ASIC management software.
• Multi-Coin Ethash Compatibility: While optimised for ETC, the EZ100 12500M is compatible with other Ethash algorithm coins including Ethereum Fair and similar Ethash-based networks.

Technical Specifications

• Algorithm: Ethash
• Supported Coins: Ethereum Classic (ETC) and other Ethash-based cryptocurrencies
• Hashrate: 12,500 MH/s (±5%)
• Power Consumption: 2,200W (±10%)
• Power Efficiency: ~0.176 J/MH
• Cooling: Air-cooled, high-speed fans
• Input Voltage: 200–240V AC, 50/60 Hz
• Networking: 1× RJ45 Ethernet
• Operating Temperature: 0°C to 40°C
• Dimensions: Confirm with supplier at time of purchase
• Net Weight: Confirm with supplier at time of purchase
• Power Supply: Confirm inclusion status at time of purchase

Power & Installation Notes

The Bombax EZ100 12500M draws 2,200W continuously. In South Africa, this places it in the category requiring a dedicated circuit — though the lower wattage than the largest Bitcoin miners makes installation somewhat more straightforward.

A dedicated 20A circuit with appropriate wiring is the minimum requirement for this unit in a South African installation. A 16A circuit may be borderline at full load — a 20A dedicated circuit is recommended to provide proper headroom. South Africa’s 230V / 50Hz supply is within the unit’s 200–240V input specification. No transformer is required. Engage a registered electrician to verify circuit sizing and ensure compliance with SANS 10142.

Load shedding is a significant operational consideration. At 2,200W, a 3 kVA or larger inverter with a 5–10 kWh battery bank could theoretically sustain the EZ100 12500M through a 2-hour Stage 2 outage — though this is at the upper end of most residential inverter systems. Operators in load-shedding-affected areas should carefully model expected downtime per day and factor this into their ETC mining calculations. A 5 kWh battery bank would provide approximately 2 hours of runtime; a 10 kWh bank approximately 4 hours at full load.

Ventilation is important. The EZ100 12500M’s fans exhaust heat from one end of the unit. Ensure airflow is directed out of the mining space and that ambient temperatures are kept below 40°C for stable operation.

Electricity Cost Context — South Africa

At Eskom’s approximate residential reference tariff of R2.80/kWh, the monthly electricity operating cost for the Bombax EZ100 12500M is estimated as follows:

(2,200 ÷ 1,000) × 24 × 30 × 2.80 = R4,435.20 per month

This is an operating cost estimate only — not a profitability projection. Actual electricity tariffs vary by municipality, time-of-use structure, and supply category. Many South African metros charge above R2.80/kWh for residential consumers. Always verify your specific electricity rate with your municipal or Eskom account before modelling ETC mining economics.

At approximately R4,435/month in electricity, the EZ100 12500M is best suited to operators with access to commercial tariffs, renewable energy, or sub-residential-rate electricity. Home miners should carefully model ETC coin price, difficulty, and pool earnings before committing to this unit.

Ideal Use Cases

• Dedicated ETC mining operations: The EZ100 12500M is designed for operators specifically targeting Ethereum Classic (ETC) as their primary coin, particularly in the post-Ethereum-merge environment where ETC is the primary large-cap Ethash coin.
• Ethash fleet diversification: Operations running multiple Ethash miners can add the EZ100 12500M to existing ETC-focused rack infrastructure without major changes to pool or network configuration.
• Mid-scale mining builds: At 2,200W, the EZ100 12500M sits in a more approachable power tier than the largest Bitcoin miners, making it accessible for operators who have suitable but not industrial-grade electrical infrastructure.
• Operators exploring ETC alongside Bitcoin: Mining farms that run Bitcoin (BTC) SHA-256 miners can add ETC Ethash exposure through the EZ100 12500M without entirely separate facilities.

Frequently Asked Questions

Does the Bombax EZ100 12500M work on South African power?
Yes. South Africa’s 230V / 50Hz supply is within the unit’s 200–240V / 50–60Hz input range. A dedicated 20A circuit and appropriate cabling are required. Consult a registered electrician for circuit installation.

What coins can the EZ100 12500M mine?
The EZ100 12500M mines the Ethash algorithm, primarily targeting Ethereum Classic (ETC). Other Ethash-compatible coins such as Ethereum Fair and similar networks are also supported, though ETC is the primary large-cap Ethash coin since Ethereum’s transition to proof-of-stake.

Which mining pool should I use for ETC?
Major ETC mining pools include 2Miners, Antpool, ViaBTC, and F2Pool. Configure the pool’s Ethash/ETC stratum URL in the miner’s web interface and set up your ETC wallet address as the worker ID. PPLNS and FPPS reward methods are available at most major pools.

How does the EZ100 12500M handle load shedding?
At 2,200W, it is theoretically possible to run the EZ100 12500M on a large residential inverter and battery bank (5 kVA inverter, 10 kWh battery) through short outages. However, this is at the upper limit of most home systems and will deplete a 10 kWh battery in approximately 4 hours. Plan for some downtime or invest in a dedicated backup power arrangement.

Is the Bombax EZ100 12500M compatible with standard mining management software?
Yes. The EZ100 12500M connects via standard Ethernet and uses a web-based management interface. It is compatible with most ASIC management platforms that support Ethash hardware.

What’s Included

• 1× Bombax EZ100 12500M mining unit
• Power supply (confirm inclusion at time of purchase)
• Power cables
• Quick-start documentation