Kaspa (KAS) is a proof-of-work network built around a BlockDAG rather than a single linear chain. Its design lets valid blocks coexist and be ordered by consensus, while kHeavyHash mining supplies the work that secures the network. The practical mining market has changed: the official Kaspa mining documentation notes that GPU mining gave way to ASIC-dominated hashrate around mid-2023. A current KAS plan therefore begins with an exact ASIC model, a current pool, measured electricity cost, and realistic site capacity.
Key takeaways
- Kaspa remains proof-of-work and uses the kHeavyHash algorithm.
- ASICs now dominate network hashrate; older GPU guidance is historical.
- Compare machines by hashrate, watts, efficiency, cooling, voltage, and current network conditions.
- Use approved product media and live product pages; do not substitute a similar model or infer performance from the enclosure.
What is Kaspa and how does its mining work?
Kaspa uses a directed acyclic graph of blocks, often called a BlockDAG. Instead of discarding every block that arrives alongside another valid block, the consensus rules can retain and order parallel blocks. This architecture is intended to support fast confirmations without abandoning proof-of-work. Mining still performs a familiar security function: miners create candidate blocks, repeatedly hash block headers, and compete to produce work that satisfies the current target.
The algorithm is kHeavyHash. Its name does not make a SHA-256 or Scrypt miner compatible; ASICs are algorithm-specific. A Bitcoin ASIC cannot be redirected to KAS, and a KAS ASIC cannot be turned into a Bitcoin miner through a pool setting. The Kaspa mining wiki also warns that the node’s native protocol differs from common Stratum implementations, so operators normally follow the connection method supported by the exact ASIC and pool.
Solo mining exposes the operator to high payout variance. Pools aggregate work and distribute rewards under their stated payout method and fee. Before configuration, verify the pool domain, regional endpoint, minimum payout, fee, and wallet format. Use a separate worker name for each machine, keep two pool endpoints for failover, and confirm pool-side hashrate after startup. A local dashboard alone does not prove accepted work.
How to choose a current KAS ASIC
Begin with efficiency, expressed here as joules per terahash for the same kHeavyHash workload. Lower is better, but total power still determines the circuit, heat load, and daily electricity use. A 45 TH/s Antminer KS7 in the current LeedMiner catalog is listed at 3,465 W and 77 J/TH. The 20 TH/s Antminer KS5 is listed at 3,000 W and 150 J/TH. Those specifications describe two different operating profiles; they are not a complete profitability forecast.
Next verify identity. Manufacturers may sell multiple hashrate bins under one family name, sometimes using the same product photograph. Match the slug, model suffix, hashrate, power, voltage, and batch on the product page and order documents. For this article, LeedMiner checked that the two models below are published, visible, in stock, and backed by approved primary media. Their sales prices are intentionally omitted from the article.
Antminer KS7 45 TH/s
Air cooling · 3,465 W · 77 J/TH · In stock
Antminer KS5 20 TH/s
Air cooling · 3,000 W · 150 J/TH · In stock
Finally, calculate with a live KAS price, network difficulty, pool fee, and expected uptime. Revenue can change faster than the hardware. Compare multiple electricity rates in the profitability calculator and include cooling, ventilation, repairs, rejected shares, taxes, and downtime. A machine that is positive before those costs may still be negative after them.
How to deploy and operate a KAS miner
Electrical readiness comes first. A continuous multi-kilowatt load needs a circuit, connector, breaker, conductor, grounding plan, and voltage range sized by a qualified electrician. Do not treat a household receptacle as suitable because an adapter fits. Confirm the manufacturer input requirements and leave capacity for ventilation or air conditioning. At 3 kW, every miner also becomes a significant continuous heat source.
Place air-cooled units so intake air is clean and exhaust cannot recirculate. Record inlet temperature, outlet temperature, fan speed, board temperatures, and pool-side accepted hashrate during commissioning. A stable burn-in should run long enough to expose thermal throttling, network drops, or weak power connections. Save the original firmware, use vendor-controlled downloads, segment the management network, and change default credentials.
For larger fleets, decide whether local deployment, hosting, or a dedicated mining site offers the best all-in operating outcome. The decision should compare energy rate, uptime obligation, repair turnaround, curtailment rights, remote access, insurance, and custody. Set a shutdown rule based on contribution margin rather than waiting for a monthly invoice. Recheck the rule whenever KAS price, difficulty, or pool performance changes.
LeedMiner can help compare the exact KS7 and KS5 variants, electrical requirements, and available deployment paths. Use the comparison tool for specifications, then request a site-specific review before energizing equipment.
Keep a commissioning record for each serial number: firmware, pool endpoints, wall power, accepted hashrate, inlet temperature, fan speed, and alert thresholds. Compare that baseline with weekly performance. A gradual rise in rejected shares or fan speed can reveal network or airflow problems before a complete outage. Evidence-based maintenance is more reliable than reacting only when the dashboard turns red.
