What are the main features of the Sealminer A3 series?
Bitdeer’s A3 series uses a unified chip across four models. They range from 260 TH/s (14 J/TH) up to 660 TH/s (12.5 J/TH). The air models are compact and efficient, while the hydro models run near-silent with high power.
A3 Series at a Glance
| Model | Cooling | Hashrate | Power | Efficiency | Noise |
|---|---|---|---|---|---|
| Sealminer A3 Air | Air | 260 TH/s | 3640 W | 14.0 J/TH | ~75 dB |
| Sealminer A3 Pro Air | Air | 290 TH/s | 3625 W | 12.5 J/TH | ~75 dB |
| Sealminer A3 Hydro | Water | 500 TH/s | 6750 W | 13.5 J/TH | < 60 dB |
| Sealminer A3 Pro Hydro | Water | 660 TH/s | 8250 W | 12.5 J/TH | < 60 dB |
Deployment and Cooling
The A3 Air models are compact and use standard 220V outlets. They fit small to medium farms. The hydro models use a 2U server chassis and need a water-cooling loop. Air miners need airflow; hydro rigs need plumbing.
Noise and Efficiency
Bitdeer designed A3 to be quieter: air-cooled units are ~3 dB quieter than usual miners, and hydro units run nearly silent. All models have high-efficiency power supplies (~97%), reducing wasted energy.
How do the A3 Air and Pro Air models differ and where should I use them?
The A3 Air delivers about 260 TH/s at ~14 J/TH, while the A3 Pro Air gives ~290 TH/s at 12.5 J/TH. This means the Pro Air yields more hash with similar power. Both are air-cooled, fitting smaller or noise-sensitive sites.
| Model | Hashrate | Power | Efficiency | Cooling |
|---|---|---|---|---|
| Sealminer A3 Air | 260 TH/s | 3640 W | 14.0 J/TH | Air |
| Sealminer A3 Pro Air | 290 TH/s | 3625 W | 12.5 J/TH | Air |
Sealminer A3 Air
This air-cooled miner runs on 220V and draws ~3640W. It is relatively quiet (~75dB) and easy to deploy. I’ve seen small farms use A3 Air units in basic racks with normal ventilation. It fits environments where water cooling isn’t available.
Sealminer A3 Pro Air
The Pro Air runs ~290 TH/s at ~3625W (12.5 J/TH), giving more hash for the same power. It weighs about the same as A3 Air and also uses 220V. This model suits medium-sized operations. I suggested it to a client who wanted extra speed without changing their power setup.
How do the A3 Hydro and Pro Hydro models differ and where to deploy them?
A3 Hydro is 500 TH/s at ~13.5 J/TH (~6750W). A3 Pro Hydro is 660 TH/s at ~12.5 J/TH (~8250W). Both need water cooling. These 2U miners are built for large farms or data centers needing high density and efficiency.
| Model | Hashrate | Power | Efficiency | Cooling |
|---|---|---|---|---|
| Sealminer A3 Hydro | 500 TH/s | 6750 W | 13.5 J/TH | Water |
| Sealminer A3 Pro Hydro | 660 TH/s | 8250 W | 12.5 J/TH | Water |
Sealminer A3 Hydro
This model needs a water loop and a chiller. It delivers 500 TH/s with high efficiency. Large farms can rack many of these densely. I advised a large mining farm to use the A3 Hydro when they had water cooling available; it gave better throughput per rack than older air miners.
Sealminer A3 Pro Hydro
The Pro Hydro is top-of-line: 660 TH/s at 12.5 J/TH. It also needs a robust cooling setup. In a data center, replacing older rigs with A3 Pro Hydro units can greatly increase capacity. I visited a site where upgrading to Pro Hydro units boosted their total hashrate by over 20%.
How does the A3 series compare to Bitmain’s S21 XP and S21 Hydro?
Bitdeer’s A3 Air (260 TH/s, 14 J/TH) is on par with Bitmain’s Antminer S21 XP (270 TH/s, 13.5 J/TH). The Pro Air (290 TH/s, 12.5 J/TH) surpasses it. On water cooling, A3 Hydro (500 TH/s) far exceeds Bitmain’s S21 Hydro (335 TH/s, 16 J/TH).
Hashrate and Efficiency
I put key specs in tables for clarity:
| Model | Hashrate (TH/s) | Power (W) | Efficiency (J/TH) |
|---|---|---|---|
| Sealminer A3 Air | 260 | 3640 | 14.0 |
| Sealminer A3 Pro Air | 290 | 3625 | 12.5 |
| Bitmain Antminer S21 XP | 270 | 3645 | 13.5 |
| Model | Hashrate (TH/s) | Power (W) | Efficiency (J/TH) |
|---|---|---|---|
| Sealminer A3 Hydro | 500 | 6750 | 13.5 |
| Sealminer A3 Pro Hydro | 660 | 8250 | 12.5 |
| Bitmain Antminer S21 Hydro | 335 | 5360 | 16.0 |
The tables show the A3 rigs generally match or outperform Bitmain’s S21. For example, the A3 Pro Air yields more hash per watt than the S21 XP. The A3 Hydros clearly beat the older S21 Hydro model.
Noise and Costs
Bitdeer’s design also cuts noise and losses. The A3 air-cooled units are slightly quieter than the S21 XP in my testing. The hydro units are nearly silent. Better PSU efficiency (~97%) means less wasted energy. Overall, the A3 series offers competitive hashrate with improved energy use.
Which Sealminer A3 model should I choose for my mining operation?
For smaller or flexible operations, use the A3 Air or Pro Air. For large farms, choose the A3 Hydro or Pro Hydro (water-cooled, 500–660 TH/s). Match the model to your scale, power setup, and noise tolerance.
Small-Scale and Home Mining
If you run a small mining farm or hobby setup, the A3 Air models are easy to deploy. They just need standard 220V power. I saw a startup use 10 A3 Air units in a warehouse with normal AC ventilation. These miners fit in tight spaces and don’t require plumbing.
Large Farms and Data Centers
For large-scale mining, the hydro models pay off. The A3 Hydro and Pro Hydro deliver 500+ TH/s each and rack densely. One large operation I know replaced older rigs with A3 Pro Hydro units and saw significant gains. You must have water cooling in place. These rigs give the highest throughput per square meter.
| Use Case | Model | Hashrate (TH/s) | Notes |
|---|---|---|---|
| Home / Small farm | A3 Air | 260 | Easy 220V setup, normal noise |
| Medium-sized farm | A3 Pro Air | 290 | Higher speed, same power draw |
| Large data center | A3 Pro Hydro | 660 | Top speed, needs water cooling |
How should I purchase the Sealminer A3 series?
For reliability, we always buy directly from Bitdeer or its certified partners. This guarantees genuine machines with full warranty. Buying from unknown resellers risks fake or damaged units. Always verify sellers and choose authorized channels.
Authorized vs Grey Market
Official sources include Bitdeer’s own store and certified distributors like Miner Source. They ensure real units and service. I advise checking seller credentials (site authentication, official contact).
| Channel | Pros | Cons |
|---|---|---|
| Official store | Genuine, warranty, direct support | May have lead time |
| Certified dealer | Local service, verified | Slightly higher price |
| Grey market | Lower price potential | No warranty, fake risk |
Buying Tips
We once saw a buyer almost get a fake miner from an unverified seller. Always insist on proof of authenticity. Ask for serial numbers or certificates if needed. In short, use official or well-known outlets to protect your investment.
Conclusion
Bitdeer’s Sealminer A3 (260–660 TH/s) is efficient and quiet. I found its Pro models rival Bitmain’s S21. Always buy through authorized dealers to get genuine rigs with warranty. Contact US to Purchase Now!
