iBeLink BM-S1 (6.8 TH/s)

The iBeLink BM-S1 (6.8TH) is an air-cooled Blake2b-Sia ASIC miner rated at 6.8TH/s for 2350 W, which works out to about 346 J/TH. It was released in March 2022 and is the lowest-hashrate machine of the four iBeLink BM models listed here, below the BM-S1 Max (12TH), the BM-S3 (19TH) and the BM-S3 Plus (25TH). On MinerCompare it is calculated for both coins that use Blake2b-Sia, Siacoin (SC) and BTCB2, and the page uses whichever of the two pays more at your electricity rate. Among the ten Blake2b-Sia machines in our list its efficiency is the lowest, so the result depends heavily on your price per kWh: cheap power matters more for this model than for newer ones. It suits buyers who already have low-cost electricity, or who want a modest entry unit to learn the setup before moving to somethi…ng larger. Enter your own rate in the calculator for current figures.

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The BM-S1 measures 128 x 201 x 402 mm and weighs 9 kg, which is compact for a machine drawing 2350 W. Four fans move air through the case and the listed noise level is about 75 dB, so it belongs in a garage, workshop or separate room rather than a living space. It runs on 220 V mains power and Ethernet is the listed network interface. The specified operating range is 5 to 40 °C at 5 to 95 % humidity, so keep the intake air cool and dry and leave free space for airflow, because all of the 2350 W ends up as heat in the room. Check that the circuit and the wiring can carry this continuous load before you plug it in. The listed hashrate and power both carry a tolerance of about 5 %, and firmware updates can shift either figure. Within the family, the BM-S1 Max (12TH) is the next step up in has…hrate, while the BM-S3 and BM-S3 Plus are far more efficient, so compare them if your electricity cost is the main concern.

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