What hashrate does the A3 Pro Air deliver?

290 TH/s SHA-256 at 3,625W and 12.5 J/TH on Bitdeer's proprietary SEAL02 chip. ±3 percent hashrate and ±5 percent power tolerance. Four cooling fans at 75 dB. This is the highest hashrate and best efficiency in Bitdeer's A3 air cooled lineup (the standard A3 Air produces 260 TH/s). The SEAL02 chip is the same silicon used across the entire A3 series at different power and hashrate bins.

How does the A3 Pro Air compare to the Bitmain S21 XP?

A3 Pro Air at 290 TH/s, 3,625W, 12.5 J/TH, $4,490. S21 XP at 270 TH/s, 3,645W, 13.5 J/TH, $4,051. The A3 Pro Air delivers 7.4 percent more hashrate at 7.4 percent better efficiency at essentially identical power draw. The S21 XP costs $439 less. Over one year at $0.08 per kWh, the A3 Pro Air produces approximately 7.4 percent more Bitcoin at the same electricity cost, generating approximately $1,391 more annual profit (at current conditions). The extra $439 acquisition cost pays for itself in approximately 42 days through the higher daily profit. For operators optimizing on efficiency and daily return, the A3 Pro Air wins. For operators minimizing upfront CapEx, the S21 XP wins.

How does the A3 Pro Air compare to the Canaan A16XP?

A16XP při 300 TH/s, 3 850 W, 12,8 J/TH. A3 Pro Air při 290 TH/s, 3 625 W, 12,5 J/TH. A16XP produkuje o 10 TH/s vyšší hashovací výkon při o 225 W více energie a je o 2,3 procenta méně efektivní. Pro operátory, kteří maximalizují absolutní hashovací výkon na místo v racku, vítězí A16XP. Pro operátory, kteří maximalizují hashovací výkon na watt, vítězí A3 Pro Air. Obě jsou vynikající hardware současné generace. Cena a dostupnost v době nákupu určují hodnotu.

What is the -20 degree cold floor and why does it matter?

Most air cooled Bitcoin miners specify 0 to 5 degrees Celsius as their minimum operating temperature. The A3 Pro Air operates down to -20 degrees Celsius. For container deployments, outdoor installations, or unheated warehouses in cold climate regions (Canada, Nordic countries, Russia, Mongolia, northern US), this eliminates the need for intake air heating systems. Heating infrastructure for mining containers costs $1,000 to $3,500 in CapEx plus ongoing electricity for the heaters. The A3 Pro Air deploys through sub zero winters without any of that infrastructure.

What voltage does the A3 Pro Air need?

220 to 277V single phase AC. No 110V support. At 3,625W on 220V draws approximately 16.5 amps. Fits standard 20 amp commercial circuits. North American residential typically provides 240V on dedicated dryer or range circuits. The built in PSU operates at 97 percent efficiency, meaning only 3 percent of wall power is lost as PSU heat versus typical 90 to 93 percent on external PSUs.

Is the A3 Pro Air profitable?

Ano, velmi silně. Kalkulačka MillionMiner při ceně 0,08 $ za kWh: +$3,81 denický zisk (výnos 10,77 $ mínus elektřina 6,96 $). Při pořizovací ceně 4 490 $ návratnost přibližně 39 dní. Při 0,07 $ za kWh: +$4,68 denně, návratnost přibližně 32 dní. Při 0,05 $ za kWh: +$6,42 denně, návratnost přibližně 23 dní. Ziskové při jakékoliv ceně elektřiny pod přibližně 0,12 $ za kWh při ceně BTC a obtížnosti v dubnu 2026. To je mezi nejrychlejšími časovými rámci návratnosti u jakéhokoliv současně dostupného těžaře Bitcoinu.

Who makes the A3 Pro Air?

Bitdeer Technologies Group (NASDAQ: BTDR). Singapore headquartered, NASDAQ listed. Founded by Jihan Wu (Bitmain co-founder). Bitdeer designs proprietary ASIC chips (SEAL program) and operates large scale mining infrastructure globally. One of very few companies that both designs the silicon and runs the mining operations. The hardware reflects real operational experience from Bitdeer's own production mining farms. 12 month manufacturer warranty.

How does it compare to Bitdeer's own A4 Pro Air?

A4 Pro Air at 336 TH/s, 10.9 J/TH on SEAL04 chip. A3 Pro Air at 290 TH/s, 12.5 J/TH on SEAL02 chip. The A4 Pro Air is the next generation: 15.9 percent more hashrate at 12.8 percent better efficiency. The A4 series represents a generational silicon upgrade. For buyers who can acquire the A4 Pro Air, it is the superior product. The A3 Pro Air is available in stock now at $4,490 while A4 availability may be limited. Production availability often determines the practical choice.

How loud is the A3 Pro Air?

75 dB from four cooling fans. Standard industrial ASIC noise, comparable to the S21 XP and S23. Requires dedicated mining space: warehouse, outbuilding, garage with sound isolation, container, or basement with ventilation. Not suitable for shared residential rooms or offices. This is the standard noise profile for any 3,000W+ air cooled Bitcoin miner regardless of manufacturer.

How big and heavy is the A3 Pro Air?

365 x 292 x 197 mm at 15.5 kg. MM's spec sheet lists "15 g" which is a data entry error. Standard industrial ASIC form factor. Rack mountable. The same chassis dimensions as the standard A3 Air (260 TH/s), meaning the Pro Air delivers 11.5 percent more hashrate from identical physical footprint.

What is the SEAL02 chip?

SEAL02 is Bitdeer's second generation proprietary SHA-256 mining chip, following the SEAL01 (A2 series). Bitdeer designs chips in house through their SEAL program rather than using third party silicon. The SEAL02 powers the entire A3 product family: A3 Air (260 TH/s), A3 Pro Air (290 TH/s, this product), A3 Hydro (500 TH/s), A3 Pro Hydro (660 TH/s). The SEAL04 chip (A4 series) is the third generation delivering sub-11 J/TH efficiency.

Jaké mince mohu těžit?

All SHA-256 proof of work cryptocurrencies. Bitcoin (BTC) primary. Bitcoin Cash (BCH), Bitcoin SV (BSV), eCash (XEC), and other SHA-256 chains. AuxPoW merged mining through supporting pools allows additional revenue from NMC, VIA, and other merge minable coins.

Je zdroj napájení součástí balení?

Yes. Built in 97 percent efficiency PSU. No external power supply to source. Connect directly to 220 to 277V outlet. The 97 percent PSU efficiency is better than typical external PSUs (90 to 93 percent), meaning less wasted electricity as PSU heat, contributing to the A3 Pro Air's overall system efficiency advantage.

Standardní průmyslová nastavení ASIC. Připojte napájecí kabel ke zásuvce 220 až 277 V (zkontrolujte proudový výkon obvodu: doporučeno 20A při 220V). Připojte Ethernetový kabel k routeru nebo switchi. Najděte IP mineru pomocí Bitdeer IP skeneru, DHCP routeru nebo skenování sítě. Otevřete webové rozhraní, nakonfigurujte URL poolu SHA-256 a BTC peněženku. Ověřte, že hashovací výkon se stabilizuje na přibližně 290 TH/s během 10 až 15 minut.

Which pools support the A3 Pro Air?

Každý hlavní SHA-256 bazén: Foundry USA, AntPool, F2Pool, ViaBTC, Braiins Pool, Luxor, OCEAN a všechny bazény kompatibilní se SHA-256. Standardní protokol Stratum. Žádná omezení kompatibility hardwaru. Výběr bazénu je preferencí uživatele.

Can I use third party firmware?

Firmware SealMiner od Bitdeer je proprietární. BraiinsOS+ v současné době nepodporuje hardware SealMiner. Provozovatelé používají standardní firmware od Bitdeer. Pro provozovatele, kteří požadují automatické ladění BraiinsOS+ nebo jiné funkce třetích stran ve firmwaru, nabízí alternativy od Bitmain Antminer širší podporu ekosystému firmwaru.

Can MillionMiner host the A3 Pro Air?

Ano. Hostingové zařízení MillionMiner přijímají hardware SHA-256 včetně A3 Pro Air. Při průmyslových sazbách hostingu (0,07 USD za kWh) denní náklady na elektřinu klesnou na 6,09 USD a zisk se zvýší na +4,68 USD denně. Odolnost vůči chladu do -20 stupňů činí A3 Pro Air obzvlášť vhodným pro nasazení v kontejnerech v chladnějších amerických lokalitách.

What maintenance does the A3 Pro Air require?

Standard air cooled ASIC maintenance. Quarterly dust cleaning of four fan intake and exhaust. Annual fan bearing inspection. Monitor hashrate through Bitdeer web interface. Released October 2025, units have approximately 6 months of field data. Bitdeer provides 12 month manufacturer warranty.

Should I buy the A3 Pro Air?

The A3 Pro Air is one of the strongest value propositions in the current Bitcoin mining market. At 12.5 J/TH it is the most efficient air cooled A3 generation miner. At $4,490 with +$3.81 daily profit and approximately 39 day payback at $0.08 per kWh, the ROI timeline is aggressive. Buy if: you want the most efficient air cooled Bitcoin miner available at its generation, you deploy in cold climates where the -20 degree floor saves heating infrastructure, you value Bitdeer's vertical integration and operational DNA, or you want a profitable miner with fast payback. Consider the Bitmain S21 XP if you need lower upfront cost ($4,051 versus $4,490). Consider the Bitdeer A4 Pro Air (336 TH/s, 10.9 J/TH) if you want next generation efficiency and can secure availability.

What other MillionMiner products complement the A3 Pro Air?

Within Bitdeer A3 air lineup: SealMiner A3 Air (260 TH/s, lower cost entry). Within Bitdeer hydro: A3 Hydro (500 TH/s), A3 Pro Hydro (660 TH/s) for liquid cooled deployment. Within Bitdeer A4 next gen: A4 Pro Air (336 TH/s, 10.9 J/TH), A4 Pro Hydro (680 TH/s), A4 Ultra Hydro (886 TH/s, 9.45 J/TH). Competing air cooled: Bitmain S21 XP (270 TH/s, $4,051), Bitmain S23 (318 TH/s, $8,103), Canaan A16XP (300 TH/s). For fleet diversification beyond Bitcoin: Bitmain KS7 (45 TH/s Kaspa, $2,123), Bitmain L9 (17 GH/s Scrypt, $3,990).

Bitdeer SealMiner A3 Pro Air 290TH | Buy from MillionMiner

Name: Bitdeer SealMiner A3 Pro Air (290TH)
Brand: Bitdeer
SKU: MM2026BITDEERSEALMINERA3PROAIR290
Price: 4490.00 USD
Availability: InStock
Rating: 4.9 (16 reviews)

Období	Denně	Týdenní	Měsíční
Příjmy	$10.85	$75.95	$325.50
Elektrická energie	-$6.96	-$48.72	-$208.80
Zisk	$3.89	$27.23	$116.70

Období

Denně

Týdenní

Měsíční

Příjmy

$10.85

$75.95

$325.50

Elektrická energie

-$6.96

-$48.72

-$208.80

Zisk

$3.89

$27.23

$116.70

Bitdeer SealMiner A3 Pro Air 290 TH/s SHA-256 Bitcoin těžař: Čip SEAL02 Lídr v efektivitě s chladící podlahou -20 stupňů

The Bitdeer SealMiner A3 Pro Air produces 290 TH/s of SHA-256 hashrate at 3,625W and 12.5 J/TH efficiency on the proprietary SEAL02 chip. ±3 percent hashrate and ±5 percent power tolerance. Four cooling fans at 75 dB. Built in 97 percent efficiency power supply unit. 365 x 292 x 197 mm at 15.5 kg. 220 to 277V single phase AC input. Ethernet connectivity. -20 to 45 degrees Celsius operating temperature. 10 to 90 percent humidity tolerance. Released October 2025 by Bitdeer Technologies Group (NASDAQ: BTDR). In stock at MillionMiner at $4,490. Three way competitive comparison at the air cooled frontier. Bitdeer A3 Pro Air at 290 TH/s, 3,625W, 12.5 J/TH, $4,490 (this product). Bitmain S21 XP at 270 TH/s, 3,645W, 13.5 J/TH, $4,051. Canaan A16XP at 300 TH/s, 3,850W, 12.8 J/TH (contact for price). The A3 Pro Air wins on per terahash efficiency (12.5 beats both). The A16XP wins on raw hashrate (300 beats both). The S21 XP wins on price ($4,051 lowest). Buyers choosing between them are making a trade off between efficiency (A3 Pro Air), hashrate (A16XP), and capital cost (S21 XP). For operators whose electricity rate makes the J/TH gap economically meaningful, the A3 Pro Air produces the best return per watt consumed. The efficiency math at scale. At $0.08 per kWh, annual electricity per unit: A3 Pro Air at $2,540 versus S21 XP at $2,554 for 20 TH/s less hashrate. The annual electricity difference is small per unit ($14) but the hashrate advantage (290 versus 270 TH/s) means the A3 Pro Air produces approximately 7.4 percent more Bitcoin at approximately the same electricity cost. Over a 10 unit fleet deployed for one year, the A3 Pro Air fleet produces approximately 200 TH/s more aggregate hashrate than an S21 XP fleet at essentially identical total electricity cost. That hashrate gap compounds into meaningful Bitcoin production difference over deployment duration. Cold climate deployment advantage detailed. The -20 degree Celsius cold floor is confirmed by ASIC Marketplace, CryptoMinerBros, and MillionMiner. Most air cooled Bitcoin miners specify 0 to 5 degrees Celsius minimum, requiring intake air heating in container deployments where ambient winter temperatures regularly drop below freezing. Heating systems for mining containers typically include: electric duct heaters ($500 to $2,000), thermostatic controllers ($200 to $500), additional ducting and insulation ($300 to $1,000), and ongoing electricity for the heaters (variable but meaningful in extreme cold). The A3 Pro Air eliminates all of this for climates that stay above -20 degrees Celsius. For operators in Canada, Scandinavia, Russia, Kazakhstan, Mongolia, northern US states, and mountainous regions, this specification translates directly into lower facility costs and simpler infrastructure. Bitdeer as a manufacturer. Bitdeer Technologies Group (NASDAQ: BTDR) is a Singapore headquartered, NASDAQ listed company that both designs ASIC mining chips (the SEAL program) and operates large scale mining infrastructure globally. Founded by Jihan Wu (co-founder of Bitmain), Bitdeer brings mining operations experience to hardware design. The SEAL02 chip is the second generation of Bitdeer's proprietary silicon, powering the entire A3 series (A3 Air at 260 TH/s, A3 Pro Air at 290 TH/s, A3 Hydro at 500 TH/s, A3 Pro Hydro at 660 TH/s). Bitdeer's vertical integration (chip design, hardware assembly, mining operations) differentiates them from pure hardware manufacturers. Bitdeer SealMiner product line context. SealMiner A2 series (SEAL01 chip): A2 Hydro at 500 TH/s. SealMiner A3 series (SEAL02 chip): A3 Air at 260 TH/s, A3 Pro Air at 290 TH/s (this product), A3 Hydro at 500 TH/s, A3 Pro Hydro at 660 TH/s. SealMiner A4 series (SEAL04 chip, next gen): A4 Pro Air at 336 TH/s and 10.9 J/TH, A4 Pro Hydro at 680 TH/s, A4 Ultra Hydro at 886 TH/s and 9.45 J/TH. The A3 Pro Air sits at the top of the A3 air cooled tier. The A4 Pro Air (10.9 J/TH) represents the next generational leap in efficiency for buyers willing to wait for availability or pay the premium. Current economics. MillionMiner calculator at $0.08 per kWh: $10.77 daily revenue, $6.96 daily electricity, +$3.81 daily profit. Monthly: +$114.30. At $4,490 acquisition: approximately 39 day payback at current BTC price and network difficulty. At $0.07 per kWh: daily electricity drops to $6.09, profit rises to +$4.68 daily, payback approximately 32 days. At $0.05 per kWh: daily electricity $4.35, profit +$6.42, payback approximately 23 days. The A3 Pro Air is firmly profitable at any electricity rate below approximately $0.12 per kWh at April 2026 conditions. Ships with built in PSU (97 percent efficiency), power cables, quick start guide, 12 month Bitdeer manufacturer warranty, and free DDP worldwide delivery from MillionMiner.

Bitdeer SealMiner A3 Pro Air 290 TH/s: Líder v chlazení vzduchem s vysokou účinností

The Bitdeer SealMiner A3 Pro Air produces 290 TH/s of SHA-256
hashrate at 3,625W and 12.5 J/TH efficiency on Bitdeer's proprietary SEAL02 chip. Released
October 2025. In stock at MillionMiner at $4,490.
Two specifications define the A3 Pro Air's competitive position: efficiency and cold tolerance.
At 12.5 J/TH, the A3 Pro Air is the most efficient air cooled Bitcoin miner in its generation.
Bitmain Antminer S21 XP at 270 TH/s and 13.5 J/TH: the A3 Pro Air delivers 7.4 percent better
efficiency and 7.4 percent more hashrate. Canaan Avalon A16XP at 300 TH/s and 12.8 J/TH:
the A16XP produces 10 TH/s more hashrate at 2.3 percent worse efficiency. The efficiency
difference compounds over deployment duration. At $0.08 per kWh, the A3 Pro Air costs $6.96
daily in electricity. The S21 XP costs $7.00 for 20 TH/s less hashrate. The A3 Pro Air produces
more Bitcoin per dollar of electricity consumed than any air cooled competitor in its generation.
The -20 to 45 degree Celsius operating range is genuinely unusual. Standard air cooled Bitcoin
miners specify 0 to 5 degrees Celsius as their cold floor. The A3 Pro Air's -20 degree floor
means it operates in outdoor containers, unheated warehouses, and exposed mining
infrastructure through sub zero winters in Canada, Nordic countries, Russia, Mongolia, and
other cold climate regions without intake air heating systems. For operators deploying in cold
climates, eliminating intake heating infrastructure (heaters, ducting, thermostats, electrical
circuits for the heating system) reduces facility CapEx and ongoing complexity. This is a
specification that saves money at the facility level, not just the miner level.
Bitdeer (NASDAQ: BTDR) manufactures the A3 Pro Air. Bitdeer is one of very few companies
that both designs ASIC chips (SEAL program) and operates large scale mining farms. Their
hardware reflects real operational data from production mining environments. The SEAL02 chip
is Bitdeer's second generation proprietary silicon, following the SEAL01 in the A2 series.
Daily economics at $0.08 per kWh: $10.77 revenue, $6.96 electricity, +$3.81 daily profit per
MM's calculator. Monthly: approximately +$114. At $4,490 acquisition cost, payback
approximately 39 days at current conditions. This is among the fastest ROI timelines for any
Bitcoin miner currently in stock.
Built in 97 percent efficiency PSU. 220 to 277V single phase (no 110V). Four fans at 75 dB. 365
x 292 x 197 mm at 15.5 kg. Ethernet. 12 month Bitdeer manufacturer warranty.

Bitdeer SealMiner A3 Pro Air 290 TH/s SHA-256 Bitcoin miner

Vlajkový vzduchem chlazený těžař Bitcoinů od Bitdeeru. 290 TH/s SHA-256 při 3 625 W a 12,5 J/TH na čipu SEAL02. Nejefektivnější vzduchem chlazený těžař Bitcoinů v generaci A3. Poráží S21 XP (13,5 J/TH) o 7,4 procenta v efektivitě. Provozní rozsah -20 do 45 stupňů Celsia pro nasazení do podnulových kontejnerů. Vestavěný zdroj s účinností 97 procent. 220 až 277V. Čtyři ventilátory při 75 dB. Rozměry 365 x 292 x 197 mm při hmotnosti 15,5 kg. Bitdeer (NASDAQ: BTDR). Skladem za 4 490 dolarů s 12měsíční zárukou a zdarma DDP po celém světě.

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