Product Overview

The IceRiver KS5 20Th is a high-performance Kaspa (KAS) ASIC miner from IceRiver, running the kHeavyHash algorithm at 20 terahashes per second. IceRiver has emerged as one of the leading manufacturers of dedicated Kaspa mining hardware, competing directly with Bitmain’s KS5 series in the mid-to-high performance Kaspa ASIC segment.

The KS5 20Th is IceRiver’s flagship model in the KS5 series, designed for commercial-scale Kaspa mining operations. It offers a competitive combination of high hashrate and reasonable power efficiency within the kHeavyHash ASIC category. With 20 TH/s output, operators can achieve meaningful Kaspa pool contribution from a single unit without the large multi-unit investments required with smaller KS-series machines.

IceRiver miners have built a strong reputation in the Kaspa mining community for reliability and consistent performance. The KS5 20Th is particularly suited to South African operators who want to mine KAS using purpose-built ASIC hardware from a manufacturer that has focused primarily on the Kaspa ecosystem since its launch.

Key Features

• 20 TH/s hashrate: IceRiver’s high-output KS5-series model, delivering 20 TH/s of Kaspa kHeavyHash mining with strong pool contribution per deployed unit.
• ~3400W power consumption: At approximately 3400W, the IceRiver KS5 20Th operates at around 170 W/TH — competitive within the current Kaspa ASIC market alongside the Bitmain KS5 Pro 21Th.
• kHeavyHash algorithm: Dedicated Kaspa (KAS) mining hardware. Not compatible with SHA-256 (Bitcoin), Blake2S (Kadena), or other proof-of-work algorithms.
• Air-cooled dual fan design: Standard industrial ASIC enclosure. No specialist cooling infrastructure required for rack deployment in a ventilated mining room or container farm.
• Ethernet (RJ-45) connectivity: Wired network connection for stable pool communication. Web-based configuration interface for pool setup and monitoring.
• IceRiver’s Kaspa-focused hardware: IceRiver specialises in Kaspa ASIC hardware, with a full product range from small home miners (KS0, KS1) to commercial units (KS3, KS5). The KS5 20Th sits at the top of their air-cooled lineup.
• Competitive alternative to Bitmain KS5 Pro: For operators evaluating both Bitmain and IceRiver Kaspa hardware, the KS5 20Th offers similar performance to the Bitmain KS5 Pro 21Th with IceRiver’s own firmware and support ecosystem.

Technical Specifications

• Algorithm: kHeavyHash
• Supported coins: Kaspa (KAS)
• Hashrate: 20 TH/s (±3%)
• Power consumption: ~3400W (±5%) at 25°C ambient
• Power efficiency: ~170 W/TH (±5%)
• Cooling type: Air-cooled, dual high-speed fans
• Noise level: ~75 dB(A)
• Input voltage: 200–240V AC
• Networking: Ethernet (RJ-45)
• Operating temperature: 5°C to 45°C
• Dimensions (L×W×H): 400 × 195 × 290 mm (approximate)
• Net weight: ~14–16 kg (confirm at order)

Power & Installation Notes

South Africa’s 230V/50Hz power supply is within the IceRiver KS5 20Th’s 200–240V input range. No voltage converter is required.

At approximately 3400W, the KS5 20Th requires a dedicated circuit. A dedicated 32A circuit, installed by a registered electrician, is the recommended approach for single-unit safe continuous operation. Standard 16A domestic circuits (safely rated to ~2944W) are insufficient for this wattage. Multi-unit installations require individual circuit breakers per miner on a dedicated distribution board.

Load shedding in South Africa at 3.4 kW means a 10kWh residential battery provides approximately 2.9 hours of operation. This is insufficient for extended load shedding stages. Operators targeting 24/7 uptime should plan for generator or commercial UPS backup. Factor effective operational hours (after load shedding) into your per-day KAS output calculations.

Thermal management: ensure clear airflow at both inlet and exhaust fan faces, maintain ambient temperature below 40°C, and use active air extraction in enclosed mining spaces. South Africa’s hot summers can cause thermal challenges without dedicated ventilation or cooling systems.

Electricity Cost Context — South Africa

Running the IceRiver KS5 20Th at 3400W continuously consumes approximately 81.6 kWh per day, or roughly 2 448 kWh per month. At R2.80/kWh (reference residential tariff — municipal rates vary), the estimated monthly electricity cost is approximately R6 854 per month.

Calculation: (3400 ÷ 1000) × 24 × 30 × R2.80 = ~R6 854/month.

At standard South African residential tariffs, this is a significant operating cost. The KS5 20Th is best suited to operators with commercial electricity rates or access to renewable energy generation. Current KAS price and network difficulty should be assessed using a mining profitability calculator before purchase. This is a cost estimate only.

Ideal Use Cases

• Dedicated Kaspa mining operations: Operators focused on mining Kaspa (KAS) at commercial scale using IceRiver’s flagship air-cooled Kaspa ASIC hardware.
• Commercial KAS mining farms: Multi-unit deployments in purpose-built mining facilities where the KS5 20Th’s standard form factor allows scalable rack configurations.
• IceRiver ecosystem users: Operators already running smaller IceRiver KS-series units (KS0, KS1, KS2, KS3) who want to scale up to flagship-level hardware within the same manufacturer’s ecosystem.
• KAS-focused portfolio diversification: Miners who want to allocate a portion of their mining capacity to Kaspa’s kHeavyHash network as a complement to Bitcoin or ETC operations.
• Comparison shopping with Bitmain KS5: Operators evaluating both Bitmain and IceRiver Kaspa options who want to compare the KS5 20Th against the Bitmain Antminer KS5 Pro 21Th before deciding.

Frequently Asked Questions

Does the IceRiver KS5 20Th work on South African power?
Yes. SA’s 230V/50Hz supply is compatible. A dedicated 32A circuit from a registered electrician is required for safe continuous operation.

How does the IceRiver KS5 20Th compare to the Bitmain KS5 Pro 21Th?
Both are high-output Kaspa ASICs in the same performance class. The Bitmain KS5 Pro 21Th offers 21 TH/s vs 20 TH/s for the IceRiver KS5 20Th, at broadly similar power efficiency. Choice often comes down to brand preference, firmware ecosystem, and unit availability. See: Bitmain Antminer KS5 Pro 21Th.

What Kaspa pools are compatible with the IceRiver KS5 20Th?
All standard kHeavyHash Stratum pools work with IceRiver miners. Popular Kaspa pools include F2Pool, HeroMiners, and K1Pool. Configure via the miner’s web interface.

How loud is the IceRiver KS5 20Th?
At approximately 75 dB(A), it is not suitable for home living areas. A dedicated mining room, outbuilding, or sound-managed container is required for deployment.

Can I mine Bitcoin with the IceRiver KS5 20Th?
No. The KS5 20Th is a kHeavyHash ASIC and mines Kaspa exclusively. For Bitcoin mining hardware, see our Bitcoin ASIC miners range.

What’s Included

• 1× IceRiver KS5 20Th ASIC miner unit
• Integrated or bundled PSU (confirm at time of order)
• Power cable (region-specific — South African plug may require local adaptor or electrician wiring)
• Ethernet cable not included
• Quick-start guide