Product Overview

The VolcMiner D1 18.5G is the top-tier variant in VolcMiner’s D1 Scrypt ASIC series, delivering 18.5 GH/s for Litecoin (LTC) and Dogecoin (DOGE) merged mining. At the apex of the D1 lineup, the 18.5G delivers the maximum Scrypt output available in VolcMiner’s current air-cooled hardware — competing with the ElphaPex DG2+ 20.5G and the Bitmain L9 17G at the top tier of the large-format Scrypt miner market.

The D1 18.5G is built for operations where maximising per-unit Scrypt hashrate is the overriding objective. At 18.5 GH/s, it delivers approximately 22% more hashrate than the entry-level D1 15.15G from the same VolcMiner chassis, with a proportionally higher power draw. For operations with sufficient power infrastructure, the D1 18.5G reduces the number of units required to achieve a target pool hashrate contribution, minimising rack space, circuit count, and per-unit management overhead.

South African commercial Scrypt mining operations targeting high LTC and DOGE merged mining output will find the D1 18.5G represents the top end of what VolcMiner’s air-cooled platform offers — suited to industrial facilities with established high-density ASIC deployment infrastructure.

Key Features

• 18.5 GH/s Scrypt Hashrate (±5%): The highest hashrate in VolcMiner’s D1 lineup. Maximises LTC and DOGE merged mining output per physical unit and per rack slot.
• Dual LTC + DOGE Merged Mining: Simultaneous merged mining of Litecoin and Dogecoin — both coins earned from every submitted share without additional power cost.
• ~3,900W Power Consumption: High absolute power draw consistent with the top-tier Scrypt miner category. Requires industrial 32A+ electrical infrastructure.
• Competitive Efficiency ~0.211 J/MH: Leading efficiency for a high-output Scrypt miner at the 18+ GH/s tier.
• Air-Cooled Industrial Design: High-speed axial fans for front-to-back thermal management. Designed for rack deployment in purpose-built, ventilated facilities.
• Standard Rack Form Factor: Compatible with standard ASIC mining racks for dense commercial deployment.
• Ethernet Management Interface: RJ45 connectivity with web-based management for pool configuration and monitoring.

Technical Specifications

• Algorithm: Scrypt
• Supported Coins: Litecoin (LTC), Dogecoin (DOGE), and other Scrypt-based cryptocurrencies
• Hashrate: 18.5 GH/s (±5%)
• Power Consumption: ~3,900W (±5%)
• Power Efficiency: ~0.211 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 VolcMiner D1 18.5G draws approximately 3,900W continuously — near the top of the single-unit air-cooled Scrypt miner power range. South African installations must comply with SANS 10142 and be certified by a registered electrician. A dedicated 32A circuit is the minimum requirement; higher-rated circuits are recommended for safe continuous operation at this wattage.

South Africa’s 230V / 50Hz supply is within the unit’s 200–240V specification. No transformer is required. For multi-unit deployments, three-phase power distribution is recommended for balanced load management. Confirm PSU compatibility with 230V input at time of purchase.

Load shedding at nearly 4 kW cannot be managed with residential inverter systems. Commercial generator backup or acceptance of mining downtime is required. Factor expected outage hours per day into operational planning and financial modelling.

Industrial ventilation is non-negotiable. At 3,900W, the D1 18.5G generates significant heat. Active extraction must maintain ambient temperatures below 40°C. Inadequate ventilation will cause thermal throttling and potential hardware damage.

Electricity Cost Context — South Africa

At Eskom’s approximate residential reference tariff of R2.80/kWh, the estimated monthly electricity cost for the VolcMiner D1 18.5G is:

(3,900 ÷ 1,000) × 24 × 30 × 2.80 = R7,862.40 per month

This is an operating cost estimate only — not a profitability projection. The D1 18.5G’s higher hashrate relative to the D1 15.15G (~22% more hashrate at ~20% more power) results in a modestly better electricity cost per GH/s — meaning it achieves more Scrypt output per rand of electricity. Actual tariffs vary by municipality and supply type. Commercial and industrial electricity accounts differ from residential tariffs.

Ideal Use Cases

• Maximum hashrate D1 deployments: Operations that need to maximise Scrypt hashrate from each rack slot will choose the D1 18.5G over the 15.15G or 16G — fewer units required per target hashrate.
• Commercial LTC/DOGE mining farms: The D1 18.5G is built for commercial operations with industrial power infrastructure and purpose-built mining facilities.
• Efficiency-optimised Scrypt fleet: The D1 18.5G’s modestly better J/MH compared to the D1 15.15G makes it slightly more efficient per unit of hashrate — an advantage that compounds at scale over time.
• Operators with renewable energy or PPA access: South African Scrypt operations with cost-effective electricity can achieve competitive LTC/DOGE mining economics with the D1 18.5G’s leading output profile.

Frequently Asked Questions

Does the VolcMiner D1 18.5G work on South African power?
Yes. South Africa’s 230V / 50Hz supply is within the unit’s 200–240V input range. A dedicated 32A+ circuit certified by a registered electrician is required.

How does the D1 18.5G compare to the ElphaPex DG2+ 20.5G?
The DG2+ 20.5G delivers slightly higher hashrate (20.5 vs 18.5 GH/s) at similar power consumption. Both compete at the top of the air-cooled Scrypt segment. Compare pricing and after-sales support when choosing between them.

Which pool should I use for LTC/DOGE merged mining?
AntPool, ViaBTC, F2Pool, and Litecoinpool.org all support merged LTC+DOGE mining. Configure the pool stratum URL in the D1’s web interface and enable merged DOGE mining in your pool account.

Can the D1 18.5G handle South African load shedding?
Not on residential inverter systems. Commercial generator backup or planned downtime during outages is required at this power level.

Is a PSU included?
Confirm PSU inclusion at time of purchase. Ensure any PSU is rated for 3,900W+ at 230V input.

What’s Included

• 1× VolcMiner D1 18.5G mining unit
• Power supply (confirm inclusion at time of purchase)
• Power cables
• Quick-start documentation