Overview
The Bitmain Antminer KS5 Pro, launched in 2024, is Bitmain’s high-performance ASIC miner for Kaspa (KAS)mining using the kHeavyHash algorithm. With a powerful hashrate of 21 TH/s and a power consumption of approximately 3150 W, it offers efficiency around 0.15 J/GH—making it one of the most capable and profitable miners for the Kaspa network.
About the Coin: Kaspa (KAS)
Kaspa is a Layer 1 proof-of-work blockchain that focuses on scalability, decentralization, and instant finality. Its native token, KAS, powers the network through high-speed transactions and decentralized security.
Kaspa uses the kHeavyHash algorithm and implements a blockDAG structure based on GHOSTDAG, enabling one block per second and fast confirmation without sacrificing decentralization.
Unlike many short-lived PoW coins, Kaspa is building long-term Layer 1 infrastructure with a growing community and high developer activity—making it attractive for strategic mining investments.
Exterior Design
The KS5 Pro features a rugged industrial chassis measuring 430 × 195.5 × 290 mm and a net weight of approximately 15.8 kg. The body follows Bitmain’s proven air-cooled form factor, similar to S21 series, but internally optimized for kHeavyHash performance.
Power Supply & PSU Details
The integrated power supply supports 220–277 AC input at 50–60 Hz, drawing about 20 A at full load. The PSU is designed with P14 Plug type for efficiency and long-term stability under high power usage.
Cooling System
Cooling is managed by 4x high-speed fans, working in a front-to-back airflow configuration. The setup ensures internal temperature remains optimal even under sustained operation. The KS5 Pro is rated at ~75–80 dB noise level.
Fan Specifications
- Model & Size: 4x Martech High-Pressure Fans, 120 × 120 × 38 mm
- Count: 4 fans—front intake and rear exhaust (dual pair)
- Voltage & Current: 12 V DC; 6.4 AMP
- Speed & Airflow: ~7000 RPM, designed for max airflow
- Noise Level: ~75–80 dB under full load
Internal Components
Internally, the KS5 Pro features a dense layout of 3 hashboards, a Bitmain control board with system-on-chip (SOC), and firmware fine-tuned for kHeavyHash mining. The build reflects Bitmain’s industrial standards, with an emphasis on thermal durability and reliability.
PSU
- Model: APW171215A V1.32
- Input Voltage: 220–277 AC
- Connectors: P14 Plug type 20AMP Power Ports comes with it’s AntWire
- Efficiency: Engineered for stable voltage under ASIC-grade loads
Control Board
KS5 Pro Uses CVITEK CV1835 C88 CB8 proprietary control board with a robust SOC, ensuring compatibility with Bitmain firmware.
Hashboards & Hashing Performance
- Hashrate: 21 TH/s ± 3%
- Model: BKK22601
- Efficiency: ~0.15 J/GH ± 5%
- Power Draw: ~3150 W
- Hashboard Layout: 3x high-density boards, optimized for kHeavyHash
ASIC Chips
The Antminer KS5 Pro utilizes Bitmain’s custom-designed 92 ASICs on each board, Model: BM2382AA made for the kHeavyHash algorithm, achieving high throughput with energy efficiency.
Operational Specs
- Algorithm: kHeavyHash (Kaspa)
- Voltage: 220–277 V AC
- Operating Temp: -20–45 °C; Storage: –20–70 °C
- Humidity Tolerance: 10–90% RH, non-condensing
- Altitude: ≤ 2000 m (with derating above 900 m)
- Network: RJ45 Ethernet 10/100 Mbps
Profitability (Last Update: 25rd June 2025)
- Hashrate: 21 TH/s
- Power Draw: ~3150 W ≈ 3.15 kW
- Daily Energy Use: 3.15 kW × 24 h = 75.6 kWh
- Electricity Cost @ $0.01/kWh: 75.6 × $0.01 = $0.76/day
- Estimated Daily Revenue: ≈ $8.90 (per MiningNow.com)
- Estimated Daily Electricity Cost: ≈ $0.76
- Net Profit: $8.90 – $0.76 = $8.14/day
Conclusion
The Antminer KS5 Pro is Bitmain’s flagship miner for Kaspa, delivering 21 TH/s at 3150 W with impressive efficiency and performance. With ASIC chips customized for kHeavyHash, a durable PSU, and enhanced firmware, the KS5 Pro stands out as a premium investment for long-term PoW mining.
Kaspa’s growing utility and decentralization make the KS5 Pro a strategic choice for miners who believe in the future of high-throughput Layer 1 blockchains.