Live Kaspa profitability for the Bitmain Antminer KS3 — 8 Th/s on KHeavyHash, 3,188 W wall draw. Hash rate is pre-filled; enter your electricity cost and hit Calculate.
| Cryptocurrency Algorithm |
Difficulty Nethash |
Market Cap 24h Volume |
Revenue Profit |
|---|
| Spec | Value |
|---|---|
| Algorithm | KHeavyHash |
| Coin | Kaspa (KAS) |
| Hash rate | 8 Th/s (8,000 Gh/s) |
| Power consumption | 3,188 W ± 5% |
| Efficiency | 0.4 J/Gh (2,500 Mh/W) |
| Manufacturer | Bitmain |
| Released | August 2023 |
| Original MSRP | $8,888 |
| Dimensions | 400 × 195 × 290 mm |
| Weight | 14.2 kg |
| Operating temp | 5 – 40 °C |
The Antminer KS3 launched at $8,888 in August 2023 — the first Bitmain-branded Kaspa miner and the unit that turned KHeavyHash from a GPU algorithm into an ASIC-dominated one. At Kaspa's late-2023 highs (around $0.18 KAS), KS3 operators broke even on hardware in 4-6 months at $0.05/kWh.
In 2026, with KAS trading below $0.05, the unit is challenged at any electricity rate above ~$0.04/kWh. Profitability now depends almost entirely on Kaspa price recovery and Bitmain's successor releases (KS5, KS5 Pro at ~3× the hash rate per watt).
The live calculator above uses real-time data from api.kaspa.org — no stale numbers.
What does the Antminer KS3 mine?
Kaspa (KAS) only. The KS3 is a single-algorithm ASIC for KHeavyHash and cannot mine any other coin.
How loud is the Antminer KS3?
~75 dB at the wall — same envelope as the S19/S21 SHA-256 miners. Plan for a dedicated shed, immersion tank, or hosting facility.
Antminer KS3 vs KS5 vs Goldshell KD6?
KS5 (20 Th/s) and KS5 Pro (21 Th/s) supersede the KS3 on efficiency. Goldshell KD6 (26.3 Th/s, 2,630W) leads on hashrate but costs more upfront. Use the live calculator to compare daily profit.
Where can I buy an Antminer KS3?
Direct from Bitmain (limited stock), or via authorized resellers and the used market. Prices in 2026 are around $400-$800 for working units — heavy depreciation from MSRP.