WindMiners K9 (10.5Th/s) – Kaspa ASIC Miner

Built by WindMiners and released to the market in November 2023, the K9 is purpose-built for Kaspa’s KHeavyHash algorithm. It tops out at 10.5Th/s while drawing 3300W, putting its power efficiency at roughly 314.29 J/Th — a solid number for anyone calculating long-term running costs.

At 14.8kg net weight, the unit is compact enough for standard rack setups, with case dimensions of 305 x 185 x 290mm (420 x 294 x 374mm including packaging). Cooling is handled by a four-fan array that keeps internal temperatures in check during sustained mining sessions, though buyers should note the unit isn’t silent — expect noise output around 75db, so plan placement accordingly (garage, dedicated mining shed, or sound-insulated room rather than a home office).

On the connectivity side, the K9 uses a straightforward Ethernet connection for pool setup and monitoring. Power input is flexible, accepting 165-300V, which gives some leeway depending on your regional electrical setup. WindMiners rates the device for operation between 0°C and 40°C with humidity tolerance from 10% to 90%, so it’s designed to handle moderately variable indoor environments without specialized climate control.

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