iBeLink BM-S3+ vs BM-S3: Guida all'hardware e ai partner
The iBeLink BM-S3+ 25 TH/s is our efficiency-focused pick, while the BM-S3 19 TH/s is the lower-cost option for buyers comparing the current BT-Miners listings. Both are BLAKE2b-Sia ASIC miners. Alongside their established Siacoin use case, they are relevant to the Bitcoin BLAKE2b chain, commonly called BTCB2 or XBT by participating services.
This guide compares the two machines, explains the electrical cost of running them, and introduces five BT-Miners partner pools: Lazarus, AlphaPool, b2pool, Second Chance Digital, and Bitcoin Xor. Product specifications and pool information were checked on September 24, 2026.
iBeLink BM-S3+ vs BM-S3 at a glance
The figures below are nominal store specifications for Siacoin operation. They are not measured BTCB2 hashrates or a forecast of mining income. The selected batch, firmware, operating environment, and pool can affect actual results.
| Specificazione | BM-S3+ 25 TH/s | BM-S3 19 TH/s |
|---|---|---|
| Hashrate nominale | 25 TH / s | 19 TH / s |
| Rated wall power | 3400 W | 3100 W |
| Efficienza nominale | 136 J/TH | 163.16 J/TH |
| Tensione di ingresso | 190-240 V | 190-240 V |
| Dimensioni | 340 × 190 × 293 mm | 340 × 190 × 293 mm |
| Peso | 14 kg | 14 kg |
| Listed operating temperature | 0-40 ° C | 0-40 ° C |
| Elenco attuale | From US$5,300; new variants listed | US$3,500; used 19T mix listed |
Check the variant before ordering. The BM-S3+ page includes both a 25T option and a 22.5–23.5T mixed option, so the starting price should not be treated as a firm quote for every 25 TH/s unit. Prices, stock, shipping, and taxes can change.
Choose BM-S3+ when efficiency and capacity matter most
Migliori iBeLink BM-S3+ 25 TH/s provides approximately 31.6% more nominal hashrate than the BM-S3 while using about 9.7% more power. Its nominal energy use per terahash is about 16.6% lower.
That makes it the stronger candidate when rack space is limited, electricity is a major operating expense, or an existing site can accommodate the additional 300 W per machine. Higher efficiency improves the hardware comparison, but does not by itself establish a payback period.
Choose BM-S3 when initial equipment cost is the priority
Migliori iBeLink BM-S3 19 TH/s offers a lower advertised purchase price and slightly lower total electrical demand. It is worth considering for a controlled first deployment or for an operator with inexpensive electricity who prioritizes upfront equipment cost.
The current listing is for used hardware. Ask for the condition, test results, firmware, included power supply, and applicable warranty before purchasing. The page distinguishes a seven-day used-miner warranty from the six-month warranty described for new machines; confirm the terms for the exact unit.
What the power difference means for your operating budget
At continuous rated operation, the BM-S3+ consumes 81.6 kWh per day and the BM-S3 consumes 74.4 kWh. These are calculations from the listed power ratings, not wall-meter test results.
| Tasso di elettricità | BM-S3+ daily electricity | BM-S3 daily electricity |
|---|---|---|
| 0.06 dollari USA/kWh | US $ 4.90 | US $ 4.46 |
| 0.10 dollari USA/kWh | US $ 8.16 | US $ 7.44 |
| 0.15 dollari USA/kWh | US $ 12.24 | US $ 11.16 |
At ten cents per kWh, the BM-S3+ costs an additional US$0.72 per day, or US$21.60 over 30 days, to operate at the stated rating. These figures exclude cooling, hosting charges, downtime, pool fees, and other expenses. Both machines require suitable electrical infrastructure and ventilation; neither should be treated as an ordinary desktop appliance.
Capire il BTCB2 network before choosing a pool
BTCB2 is the independent Bitcoin BLAKE2b chain discussed here, not SHA-256 Bitcoin (BTC) and not Siacoin (SC). Some participating services now use XBT for this chain, although XBT can mean ordinary Bitcoin elsewhere. Confirm the network rather than relying on a ticker or a familiar address format.
The current BT-Miners product descriptions report owner-confirmed AlphaPool usability for relevant iBeLink models. AlphaPool also explicitly lists the BM-S3+ and its Sia-firmware connection port. This does not establish that every batch and firmware has been tested on every partner pool. Ask us to confirm the exact model and configuration, then verify accepted shares and reward accounting on the selected service.
Reward availability has changed. Migliori Knots 29.4.2 release notes describe a 45-day maturity period for affected newly mined rewards. They also discuss possible future extensions and restrictions involving miners without their own node and DATUM gateway. Those future measures should not be presented as already implemented, but buyers should consider them before committing capital.
DATUM lets an operator build block templates using a local node and gateway while working with a pool. The ASIC connects to that gateway; a pool DATUM endpoint is not interchangeable with a public ASIC Stratum address. Budget for setup and maintenance as well as the machine itself.
Meet our five partner mining pools
The following services are part of our partner-pool selection for this article. Compare the mining path and payout rules as well as the headline fee. These are dated summaries of pool-published information, not independent uptime or performance audits.
| Partner pool | Published approach and fee | Cosa confermare |
|---|---|---|
| Lazarus | TIDES with direct coinbase allocation. Own DATUM gateway: 0% pool fee plus a variable subsidy. Latest notice: public Stratum 25% from block 973,750; solo 7.5%. | The latest notice conflicts with older 15% cards on the page. Follow current operator instructions and verify the active terms. |
| AlphaPool | Custodial PPLNS pool; current displayed fee 2.95%. The site offers DATUM guidance and lists BM-S3+ connectivity. | Check current gateway requirements, maturity rules and payout eligibility. Its BM-S3+/Sia-firmware Stratum guidance specifies port 7777. |
| b2pool | Shared TIDES and solo options. Shared TIDES is listed at 1%; the DATUM connection is advertised at 0%. | Distinguish shared, solo and DATUM modes. Confirm the model-specific setup and regional endpoint. |
| Second Chance Digital | XBT DATUM/TIDES via RATUM. A 0.1% promotional DATUM fee is advertised through October 8, 2026. | The promotion is specific to DATUM. Port 28915 connects your gateway to the pool; do not point an ASIC directly at it. |
| Bitcoin Xor | Non-custodial shared TIDES. Own node/gateway: 1%; pool-built templates: 2%. US, Asia and Europe endpoints. | The operator recommends an own-gateway setup and warns about possible future reward restrictions on other paths. |
Lazarus for operators building their own templates
Lazarus directs shared rewards to miners in the block coinbase and encourages own-gateway operation through its DATUM subsidy. The subsidy depends on pool activity and allocation rules; it is not a fixed extra return. Its recent fee notice makes checking the live terms especially important.
AlphaPool for the documented iBeLink connection path
AlphaPool provides explicit BM-S3+ information, making it a useful starting point when discussing an iBeLink configuration with BT-Miners. Treat the published port as one part of the setup, not proof of a complete successful deployment. Confirm node rules, gateway choice, worker identity and reward visibility.
b2pool for comparing shared and solo modes
b2pool explains how its rolling TIDES window distributes shared rewards and separately offers solo mining. Solo concentrates block-finding risk on the individual miner. Do not compare a solo fee and a shared fee as if the timing and variability of rewards were the same.
Second Chance Digital for a DATUM option with dated promotional terms
Migliori Second Chance Digital dashboard describes a local XBT-capable node, a compatible DATUM gateway, and RATUM-based TIDES accounting. Verify the post-promotion fee before using the introductory rate in a longer-term budget.
Bitcoin Xor for regional DATUM connectivity
Bitcoin Xor separates the own-gateway path from its pool-built-template connection and explains the fee difference. Its direct coinbase payout design reduces reliance on a stored pool balance, but does not remove network maturity rules or guarantee that rewards are immediately spendable.
Our recommended buying and deployment sequence
- Choose the exact model and batch. Start with BM-S3+ for nominal efficiency, or assess BM-S3 used hardware when purchase cost is the main constraint.
- Confirm 190–240 V supply compatibility, circuit capacity, ventilation and measured wall power for the installation.
- Choose the chain and partner pool. Obtain the current model-specific instructions, including whether you will operate your own node and DATUM gateway.
- Create a separate compatible wallet. Our BTCB2 wallet setup walkthrough explains the interface; use current releases and network rules rather than copying an older version or maturity assumption.
- Test one machine, record accepted and rejected shares, verify credited rewards, and account for the maturity delay before expanding.
Contact BT-Miners with your electricity rate, available voltage, intended pool and preferred model. We can help confirm the current batch and configuration before you order. The BM-S3+ and BM-S3 offer two distinct entry points; the right choice depends on total operating cost and a workable pool setup.
Domande frequenti
Which is more efficient, BM-S3+ or BM-S3?
Using the listed nominal ratings, BM-S3+ is more efficient at 136 J/TH versus approximately 163.16 J/TH. Actual power and pool-side hashrate should be checked on the selected unit.
Do these machines mine normal SHA-256 Bitcoin?
No. They are BLAKE2b-Sia ASICs. The BTCB2 opportunity discussed here concerns a separate BLAKE2b chain, not SHA-256 Bitcoin.
Can both models use all five partner pools?
Do not assume universal compatibility. Confirm the exact model, firmware, gateway and pool path. AlphaPool documentation explicitly lists BM-S3+; support on other configurations requires separate verification.
Does a zero pool fee mean zero mining cost?
No. Electricity, hardware, cooling, node and gateway operation, and reward timing still matter. The 0% terms mentioned here apply to particular DATUM paths.
sia BTCB2 rewards immediately available?
No. Current Knots release notes describe a 45-day maturity period for affected rewards and discuss possible further changes. Check both network rules and pool payout conditions.
Sources and review date
Reviewed September 24, 2026. Specifications and listing prices come from the two linked BT-Miners product pages. Pool terms come from the five linked pool sites and the Second Chance Digital dashboard. Network changes are attributed to the linked Knots 29.4.2 release notes. Percentage comparisons and electricity costs are calculated from nominal store ratings.
This article provides product and setup information. Mining returns, asset liquidity, pool terms and network rules can change; no income or payback period is guaranteed.
