Product Overview

The Goldshell KA Box 1.18Th is a compact, home-sized Kadena (KDA) ASIC miner from Goldshell, running the Blake2S algorithm at 1.18 terahashes per second. Designed as part of Goldshell’s popular Box series of quiet, home-friendly miners, the KA Box brings dedicated KDA mining capability to individual miners and enthusiasts in a desktop-sized, low-noise enclosure.

Kadena (KDA) is a proof-of-work blockchain running the unique Chainweb multi-chain architecture — 20 simultaneous chains providing high throughput with PoW security. The Blake2S algorithm used by Kadena was designed to be ASIC-friendly, meaning purpose-built hardware like the KA Box is significantly more efficient per watt than GPU mining for KDA. The KA Box is the entry-level Goldshell Kadena miner, sitting below the larger commercial-scale Bitmain KA3 in terms of hashrate.

For South African home miners, the KA Box is one of the most practical entry points into Kadena mining. Its low power consumption (~65W) makes it trivially easy to run from a standard home socket, keeps electricity costs minimal, and allows it to run through load shedding on modest home battery backup. The Goldshell Box series is well-regarded in South Africa’s home mining community for exactly these reasons.

Key Features

• 1.18 TH/s hashrate: Entry-level Kadena (KDA) mining output from Goldshell’s compact Box series. Suitable for home miners and KDA enthusiasts wanting dedicated Blake2S mining hardware.
• ~65W power consumption: Exceptionally low power draw. At 65W, the KA Box is one of the most energy-efficient ASIC miners available, making home mining genuinely practical and low-cost to operate.
• Compact desktop form factor: Designed for home use, not 19-inch rack mounting. Small enough to sit on a desk or shelf in a home office, spare room, or study.
• Blake2S algorithm (Kadena-specific): Dedicated to Kadena (KDA) mining. Not compatible with SHA-256 (Bitcoin), Blake3 (Alephium), or other algorithm networks.
• Quiet operation: The Box series’ small fans at 65W load operate at low RPM and are substantially quieter than commercial ASIC miners — suitable for shared living spaces with modest background noise levels.
• Universal power input: Compatible with standard South African 230V power as well as international 110V supplies.
• Goldshell Box ecosystem: Part of Goldshell’s well-established home miner range, with good community support, firmware availability, and a reputation for reliable small-miner hardware.

Technical Specifications

• Algorithm: Blake2S
• Supported coins: Kadena (KDA)
• Hashrate: 1.18 TH/s (±10%)
• Power consumption: ~65W (±10%)
• Power efficiency: ~55 W/TH (±10%)
• Cooling type: Air-cooled, compact low-noise fan
• Noise level: ~35–50 dB(A)
• Input voltage: 100–240V AC (universal)
• Networking: Ethernet (RJ-45)
• Operating temperature: 5°C to 35°C
• Dimensions: Compact desktop enclosure (confirm exact dimensions at order)
• Net weight: ~2–3 kg

Power & Installation Notes

South Africa’s 230V/50Hz supply is fully within the KA Box’s universal 100–240V input range. No voltage converter is required. The KA Box runs directly from any standard South African wall socket.

At only 65W, the Goldshell KA Box places virtually no strain on home electrical infrastructure. It can safely share a standard 16A circuit with other home appliances. No electrician, dedicated circuit, or infrastructure modification is needed. Simply plug in and connect to your home network.

Load shedding is almost trivially manageable with the KA Box. At 65W, a standard 5kWh home battery inverter can run the KA Box for over 76 hours — far more than any scheduled South African load shedding block. Even a small UPS (1kWh) provides over 15 hours of KA Box operation. This makes it one of the most load-shedding-resilient ASIC miners available in South Africa.

Ventilation: the KA Box’s low heat output means normal room ventilation is sufficient. Avoid placing it in a sealed enclosure. Normal convective cooling with ambient air circulation is adequate.

Electricity Cost Context — South Africa

Running the Goldshell KA Box at 65W continuously consumes approximately 1.56 kWh per day, or roughly 46.8 kWh per month. At R2.80/kWh (reference residential tariff — municipal rates vary), the estimated monthly electricity cost is approximately R131 per month.

Calculation: (65 ÷ 1000) × 24 × 30 × R2.80 = ~R131/month.

At approximately R131 per month, the KA Box has one of the lowest electricity operating costs of any mining device on this site. This makes it particularly accessible for South African home miners who want to mine Kadena without significant ongoing costs. Current KDA price and network difficulty should be assessed before purchase. This is a cost estimate only.

Ideal Use Cases

• Home Kadena miners: Miners who want to mine KDA at home, from a standard socket, without noise, electricity infrastructure, or thermal management concerns.
• First-time ASIC miners exploring Kadena: An affordable, low-risk entry into Kadena mining using dedicated ASIC hardware in a user-friendly form factor.
• Goldshell Box series collectors: Miners who already run Goldshell Mini DOGE, AL Box, or other Box series units and want to add KDA to their home mining portfolio.
• Load-shedding-resilient passive mining: With only 65W draw, the KA Box is one of the very few ASIC miners you can realistically keep running through South African load shedding with standard home battery backup.
• Kadena ecosystem participants: Operators interested in Kadena’s unique Chainweb multi-chain architecture who want to mine KDA as a way of participating in and supporting the network.

Frequently Asked Questions

Does the Goldshell KA Box work on South African power?
Yes. The universal 100–240V input handles SA’s 230V supply natively. No adaptor or converter required. Plugs directly into any standard South African wall socket.

What is Kadena (KDA)?
Kadena is a proof-of-work blockchain using the Chainweb multi-chain architecture (20 chains) and the Blake2S hashing algorithm. KDA is the native token used for transactions and smart contracts on the Kadena network. See our full range of Kadena ASIC miners.

What pools work with the Goldshell KA Box?
Popular Kadena mining pools include F2Pool, HashPool, and Poolflare. Configure pool settings in the Goldshell web interface using your pool URL, worker name, and KDA wallet address.

How loud is the Goldshell KA Box?
The KA Box is one of the quieter ASIC miners available — typically in the 35–50 dB range, comparable to a quiet desktop computer. Suitable for use in a home office or study, though individual comfort with background noise varies.

How does the KA Box compare to larger Kadena miners like the Bitmain KA3?
The KA Box offers 1.18 TH/s at 65W for home use. The Bitmain KA3 166T offers 166 TH/s at 3154W for commercial farms. The KA Box is ~140× less hashrate but also ~50× less power, optimised for home miners rather than commercial operations. See: Bitmain Antminer KA3 166T.

What’s Included

• 1× Goldshell KA Box 1.18Th ASIC miner unit
• Integrated PSU with standard power cable included
• South African power adaptor (confirm at order — international units may ship with EU or UK plug)
• Ethernet cable not included
• Quick-start guide