The Bitmain Antminer KS3 is a high-performance ASIC miner engineered specifically for mining Kaspa (KAS), one of the fastest-growing cryptocurrencies leveraging the innovative GHOSTDAG protocol. Developed by Bitmain—one of the most trusted names in blockchain hardware—the KS3 delivers powerful efficiency and reliability for both beginner and experienced miners. In this comprehensive guide, we’ll explore its key specifications, setup process, profitability potential, and how it stacks up against competing models.
Key Specifications of the Bitmain Antminer KS3
Released in August 2023, the Antminer KS3 is optimized for the kHeavyHash algorithm, which powers the Kaspa network. With a robust hash rate of 9.4 TH/s and an energy efficiency of just 0.372 joules per gigahash (J/GH), this miner strikes an impressive balance between performance and power consumption.
Here are the full technical details:
- Manufacturer: Bitmain
- Model: Antminer KS3
- Launch Date: August 2023
- Hash Rate: 9.4 TH/s
- Power Consumption: 3500W
- Energy Efficiency: 0.372 J/GH
- Dimensions: 430 x 195 x 290 mm
- Weight: 16.1 kg (16,100 g)
- Noise Level: 75 dB
- Operating Temperature: 5°C to 40°C
- Humidity Range: 10% to 90% (non-condensing)
- Network Connection: Ethernet
This combination of speed and efficiency makes the KS3 one of the most competitive options available for Kaspa mining today.
💡 Pro Tip: To maximize lifespan and performance, ensure your mining environment maintains stable temperature and airflow.
👉 Discover how to optimize your mining returns with advanced tools and insights.
What Can You Mine with the Antminer KS3?
The Antminer KS3 is designed exclusively for Kaspa (KAS) mining using the kHeavyHash consensus algorithm. Unlike multi-algorithm ASICs, this model cannot be repurposed for other coins such as Bitcoin or Ethereum. However, its specialization allows it to outperform general-purpose miners when targeting KAS.
Kaspa has gained attention for its ultra-fast block times—enabled by the GHOSTDAG protocol—which supports high transaction throughput and scalability. As adoption grows, so does the incentive to mine KAS efficiently. The Antminer KS3 positions users at the forefront of this trend.
With rising interest in Layer-1 blockchains offering instant settlement and low fees, Kaspa’s market presence continues to expand. Mining KAS with dedicated hardware like the KS3 not only contributes to network security but also offers promising long-term yield potential.
Understanding Profitability: Is the KS3 Worth It?
Mining profitability depends on several dynamic factors:
- Current Kaspa price
- Electricity cost per kWh
- Network difficulty
- Miner’s hash rate and efficiency
- Hardware cost and maintenance
Based on average estimates from real-time mining calculators (as of early 2025), here's a general breakdown of potential earnings with the Antminer KS3:
| Period | Estimated KAS Mined | Approximate USD Value* |
|---|---|---|
| Daily | ~28–34 KAS | $14–$17 |
| Monthly | ~850–1,020 KAS | $425–$510 |
| Yearly | ~10,200–12,240 KAS | $5,100–$6,120 |
*Assumes KAS price between $0.50 and $0.60; electricity at $0.10/kWh.
At these rates, payback periods can range from 12 to 18 months, depending on initial investment and local energy costs. However, if Kaspa experiences bullish momentum—as projected by several crypto analysts—returns could accelerate significantly.
Keep in mind that network difficulty increases over time as more miners join, which may reduce daily yields. Regular monitoring and adjustments are essential for sustained profitability.
👉 Stay ahead with real-time market data and smart trading strategies.
How to Set Up and Operate the Antminer KS3
Setting up the Bitmain Antminer KS3 is straightforward if you follow these steps carefully:
Step 1: Familiarize Yourself with the Hardware
Before powering on, inspect all components:
- Control board
- Power supply unit (PSU)
- Cooling fans
- Ethernet port
- Display panel (if equipped)
Ensure cables and connectors are secure and undamaged.
Step 2: Connect and Power On
Connect the miner to a compatible PSU (typically 3500W or higher). Plug into a stable power source and connect via Ethernet to your router or switch.
Once powered, the device will boot up and display its IP address on-screen or through a connected monitor.
Step 3: Access the Web Interface
Open a browser and enter the displayed IP address. Log in using default credentials (usually root / admin). Change the password immediately for security.
Step 4: Configure Mining Pools
Enter details for at least one mining pool. Recommended fields include:
- Pool URL (e.g.,
stratum+tcp://pool.kaspa.org:16171) - Worker Name
- Password (often left blank or set to "x")
You can add backup pools for redundancy.
Step 5: Adjust Fan Speed and Monitor Performance
Set fan speed based on ambient temperature (recommended: 70–90%). Use the dashboard to monitor:
- Real-time hash rate
- Temperature readings
- Uptime
- Rejected shares
Regularly check firmware updates from Bitmain’s official site to ensure optimal operation.
Step 6: Environmental Optimization
Place the miner in a well-ventilated area with temperatures between 5°C and 40°C. Avoid moisture-prone locations due to sensitivity within the 10–90% humidity range.
Frequent overheating can shorten hardware life and reduce efficiency.
How Does the KS3 Compare to Other Kaspa Miners?
While several manufacturers now produce kHeavyHash-compatible ASICs, the Antminer KS3 stands out due to Bitmain’s reputation for quality control and after-sales support.
Compared to alternatives like the Goldshell KADIVER or IceRiver KS series, the KS3 offers:
- Higher hash rate (9.4 TH/s vs ~8–8.5 TH/s)
- Superior energy efficiency
- More reliable build quality
- Easier firmware management
However, newer models may offer slightly better efficiency or quieter operation. Always compare total cost of ownership—not just upfront price—when evaluating options.
Warranty and Support: What You Need to Know
Bitmain does not offer a standardized global warranty for the Antminer KS3. Coverage varies depending on where you purchase it:
- Direct from Bitmain: Typically includes 6–12 months
- Third-party resellers: May offer shorter or extended terms
For technical issues, contact Bitmain’s official support team or consult community forums such as Reddit’s r/Kaspa or Bitcointalk threads.
Regular maintenance—such as cleaning dust filters and checking cable integrity—can extend your miner’s lifespan beyond warranty periods.
Frequently Asked Questions (FAQ)
Q: Can I use the Antminer KS3 to mine Bitcoin?
A: No. The KS3 uses the kHeavyHash algorithm, which is exclusive to Kaspa. It is not compatible with SHA-256-based networks like Bitcoin.
Q: How loud is the Antminer KS3?
A: It operates at approximately 75 dB, similar to a vacuum cleaner. Consider soundproofing or placing it in a separate room if noise is a concern.
Q: Does the KS3 come with a power supply?
A: Typically not. Most units are sold without a PSU—you’ll need to purchase a compatible 3500W+ power supply separately.
Q: How often should I update the firmware?
A: Check Bitmain’s website every few months. Update only when necessary, especially if new features or stability improvements are announced.
Q: Is cloud mining KAS more profitable than owning a KS3?
A: Owning physical hardware gives you full control and potentially higher long-term returns. Cloud mining often comes with hidden fees and limited transparency.
Q: Can I run multiple KS3 units together?
A: Yes. You can manage multiple miners through a single dashboard by assigning static IPs or using a mining management tool.