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Used Bitmain Antminer S19j 90T 3250W BTC Miner
Bitmain Antminer S19j (90Th) is an ASIC miner designed for SHA-256 algorithm, specifically targeting BTC (Bitcoin). It delivers a maximum hashrate of 90Th/s while consuming 3250W of power, resulting in an energy efficiency of 0.036j/Gh.
Because the mining machine market changes too fast, the price of mining machine may change in a short time, so please confirm the price again with our sales before placing an order
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Used Antminer S19j 90T: Reliable Bitcoin Mining Value
Product Overview
Core Advantages of This Used Unit
1. Verified Performance & Efficiency
- 90TH/s Stable Hashrate: Processes 90 trillion calculations per second, with hashrate validated via Bitmain’s official firmware during pre-sale testing (minimum 81TH/s to pass inspection) .
- 34.5J/TH Energy Efficiency: Maintains the same core efficiency as new units (±5% variance) , outperforming older-generation miners (e.g., Antminer S17) and minimizing electricity costs.
- Proven Durability: Built with Bitmain’s industrial-grade aluminum alloy chassis (14.6kg net weight) , designed for 24/7 operation — remaining hardware lifespan estimated at 2-3 years under proper ventilation and maintenance.
2. Rigorous 12-Point Pre-Sale Inspection
- Hashrate validation (minimum 81TH/s, ±10% of rated output)
- Power consumption verification (≤3412W @ 25℃)
- Fan functionality (dual industrial fans tested for airflow and noise ≤75dB)
- Hash board integrity (no dead chips, uniform temperature distribution)
- PSU performance (Bitmain APW12 power supply tested for stability)
- Network connectivity (RJ45 Ethernet 10/100M verification)
- Firmware update to latest official version (with secure boot enabled)
- Physical condition check (no water damage, corrosion, or structural defects)
- Voltage compatibility test (200-240V AC input)
- Temperature tolerance test (0-40℃ operating range)
- Error log review (no critical hardware faults or overheating history)
- 72-hour stress test (≥99% uptime requirement)
3. Transparent Condition & Cost Savings
- Cosmetic Condition: May show minor signs of wear (e.g., scratches on chassis, faded labels) but no functional impact — detailed photos and inspection reports provided upon request.
- 40-60% Cost Savings: Priced significantly below new units while retaining 90%+ of original performance .
- No Hidden Defects: All known cosmetic blemishes are disclosed upfront; units with irreparable hardware issues are rejected from inventory.
4. Trusted Warranty & Support
- 30-Day Seller Warranty: Covers hash board failures, PSU malfunctions, and network connectivity issues — free repair or replacement for qualified defects.
- Bitmain Compatibility: Supports Bitmain’s official warranty check tool (via serial number) for remaining factory warranty status (if applicable) .
- Technical Assistance: Access to our team of mining experts for setup guidance, pool configuration, and maintenance tips (e.g., fan cleaning, firmware troubleshooting) .
Technical Specifications
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Parameter
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Details
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Model
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Bitmain Antminer S19j 90T (Used)
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Algorithm
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SHA-256 (Supports BTC, BCH, BSV)
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Typical Hashrate
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90TH/s ±10% (verified via pre-sale testing)
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Power Consumption
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3250W ±5% @ 25℃
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Energy Efficiency
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34.5J/TH ±5% @ 25℃
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Cooling System
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Air-cooled (dual industrial fans, 75dB noise level)
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Input Voltage
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200-240V AC (single-phase)
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Input Frequency
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47-63Hz
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Input Current
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≤20A (10A per line for dual input)
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Network Interface
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RJ45 Ethernet (10/100M)
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Operating Temperature
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0-40℃
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Operating Humidity
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10-90% RH (non-condensing)
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Operating Altitude
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≤2000m
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Dimensions (W×D×H)
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400×195.5×290mm (without package)
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Net Weight
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14.6kg
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Gross Weight (with package)
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15.8kg
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Package Dimensions
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570×316×430mm
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Original Release Date
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June 2021
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Included PSU
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Bitmain APW12 (tested for 90%+ efficiency)
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Why Choose This Used Antminer S19j 90T?
- Proven Track Record: One of the most widely deployed miners in the S19 series, with millions of units operating globally and a reputation for 99%+ uptime .
- Fast ROI: Lower upfront cost combined with stable performance shortens payback periods (estimated 8-14 months at \(0.04-\)0.08/kWh) .
- Plug-and-Play Readiness: Pre-configured with the latest official firmware, ready to connect to mining pools (e.g., F2Pool, Poolin) within minutes .
- Scalability: Compact design fits standard 19-inch server racks, ideal for expanding existing mining farms or starting new operations .
- Bitmain Legacy: Built with Bitmain’s proprietary ASIC chips and decades of mining hardware expertise, ensuring superior reliability vs. generic miners.
Application Scenarios
- Small-to-medium mining operations
- Budget-conscious individual miners
- Mining farm expansion projects
- Dedicated home mining spaces (with proper ventilation)
- Educational or hobbyist mining setups
Package Includes
- 1× Professionally Tested Used Antminer S19j 90T Miner
- 1× Bitmain APW12 Integrated Power Supply Unit (PSU)
- 1× Region-Specific Power Cable
- Pre-Sale Inspection Report (with hash rate test results and photos)
- Digital User Manual (English)
- Quick Start Guide (Pool Configuration & Maintenance Tips)
Bitmain Antminer S19j Pro (96Th) is an ASIC miner designed for SHA-256 algorithm, specifically targeting BTC (Bitcoin) . It delivers a maximum hashrate of 96Th/s while consuming 2832W of power, resulting in an energy efficiency of 0.03j/Gh.
SHA-256 Mining Rig for Reliable BTC Returns
The Bitmain Antminer S19j is a mid-range SHA-256 ASIC miner designed for stable Bitcoin mining in both small and large-scale environments. It delivers 90 terahashes per second while consuming 3250 watts of power. With an energy efficiency rating of 0.036 J/Gh, this model strikes a useful balance between power draw and hash performance.
Miners who prioritize electrical cost management will benefit from its energy profile. Because the S19j runs without excessive spikes in load, it maintains consistent output across long sessions. This makes it well-suited for 24/7 mining cycles where thermal reliability and steady throughput are required.
Built for Balance, Longevity, and Deployment Flexibility
- 90 TH/s hashrate aligned with SHA-256 mining
- 3250W power draw supports long uptime cycles
- 0.036 J/Gh efficiency helps reduce operational costs
- Compact air-cooled design for simple rack deployment
- Proven Bitmain hardware structure ensures reliability
As mining equipment ages, it often becomes difficult to keep temperatures under control. However, the S19j maintains efficient chip-level cooling, especially when used in well-ventilated environments. The internal layout favors airflow distribution, which helps the unit avoid performance dips during high-output periods.
Bitmain built this model for miners who value long-term consistency over aggressive overclocking. Unlike some experimental hardware that may introduce volatility, the S19j performs at a predictable rate. You can integrate it easily into mixed environments or scale it across uniform clusters.
Which Miner Should You Buy?
Choosing the right miner depends on your target coin, electricity cost, and expected ROI.
To help you decide, we’ve ranked the latest ASIC miners by profitability based on real-time market data. Whether you’re mining Bitcoin, Kaspa, or Alephium, our ranking table helps you find the most profitable mining hardware for your setup.
- Miner
- Coin
- Price
- Hashrate
- Power
- Efficiency
- Algorithm
- Profitability
- Payback
FAQs
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