Bitmain Antminer DR7 (127TH)

127 TH/s on Blake256R14 algorithm at 2,730W continuous power draw and 21.5 J/TH efficiency. Bitmain's ±3% hashrate tolerance produces real world output in the 123 to 131 TH/s range. ±5% power tolerance. This is one of very few production ASICs targeting the Blake256R14 algorithm from any manufacturer.

Any Blake256R14 proof of work cryptocurrency. Primary target based on current network economics is ScPrime (SCP). Secondary option is Decred (DCR). Most profitability calculators (ASIC Miner Value, Mining Now, MineTheASIC) default to SCP as the highest revenue Blake256R14 coin at current conditions. Decred has shifted emphasis toward proof of stake consensus, reducing relative PoW mining revenue versus staking rewards.

Decred (DCR) uses a hybrid proof of work and proof of stake consensus where miners produce blocks and stakers vote on block validity and protocol changes. Decred's treasury system automatically allocates a portion of block rewards to fund development. ScPrime (SCP) is a decentralized cloud storage network that also uses Blake256R14 proof of work for network security. Both cryptocurrencies share the Blake256R14 algorithm, making the DR7 compatible with both networks through pool selection.

100 to 240V universal voltage single phase input. At 220V: approximately 12.4 amps continuous. At 240V: approximately 11.4 amps continuous. Deployable in standard commercial or industrial electrical service without three phase infrastructure. Fits standard 15 amp 240V or 20 amp 120V circuits. Note: EndlessMining documents specific batches with 220 to 277V input, indicating possible batch PSU variations. Verify input voltage with MillionMiner at time of purchase for specific deployment scenarios.

Generally no at current market conditions. Multiple profitability calculators show negative daily margins across nearly all electricity rate tiers. ASIC Miner Value at $0.10 per kWh: negative $4.03 daily. Mining Now February 2026 at $0.07 per kWh: negative $0.996 daily. MineTheASIC at $0.04 per kWh: negative $3.93 daily. MillionMiner $0.08 per kWh onsite calculator: negative $1.32 daily. Economic viability requires free or near free electricity, speculative SCP or DCR price appreciation positioning, or strategic network support scenarios beyond immediate profitability.

Technically deployable at home due to 100 to 240V universal voltage, but economically questionable. 75 dB noise requires sound isolated space (garage, outbuilding, basement with insulation). 2,730W thermal load requires ventilation. The primary challenge is economic viability: at residential electricity rates ($0.10 to $0.20 per kWh), the DR7 loses money daily. Home deployment makes sense only for free electricity scenarios (solar with battery surplus), hobby operators supporting Blake256R14 network security, or speculative positioning on meaningful coin price appreciation.

430 x 195 x 290 mm chassis at 16.1 kg. Compact standalone format similar to Antminer X5 and other Bitmain air cooled altcoin miners. Fits standard shelves or mining racks without specialized rack mount hardware. Four internal cooling fans with air intake and exhaust.

Air cooling through four internal cooling fans. No external water loops, no immersion tanks, no plumbing infrastructure. Facility requirements: proper ventilation for 9,316 BTU per hour heat output, adequate intake and exhaust air, ambient temperature within 5 to 45 degrees Celsius. Internal temperature monitoring maintains body temperature below 40 degrees Celsius during operation. For multi unit deployment in enclosed spaces, HVAC capacity must match aggregate BTU output.

Bitmain 6 month factory warranty per BT-Miners documentation on new units. MillionMiner ships with free DDP (Delivered Duty Paid) worldwide delivery when in stock, covering all customs clearance, import duties, and taxes. Warranty exclusions include damage from operation outside environmental specifications, power surge damage, physical damage, and unauthorized firmware modifications. Warranty claims routed through direct Bitmain channels.

The DR7 represents a generational improvement over older Decred ASICs like the DR3, DR5 series from 2018 to 2020 era. Where older DR series hardware ran 7 to 35 TH/s at poor efficiency, the DR7 delivers 127 TH/s at 21.5 J/TH. However, 21.5 J/TH remains inefficient by current standards: modern SHA-256 hardware runs at 9.5 to 13 J/TH, and even though Blake256R14 is a different algorithm with different silicon requirements, the DR7's efficiency struggles against current network difficulty and coin prices.

CapEx : coût d'acquisition DR7 plus PSU (inclus). Infrastructure de site minimale (service électrique monophasé existant suffisant). OpEx annuel par unité à 2 730W en fonctionnement continu : électricité à $1 911 à $0,08 par kWh, $1 673 à $0,07 par kWh, $956 à $0,04 par kWh. Réserves pour maintenance. Revenus dans les conditions actuelles du réseau : environ $950 à $1 400 de revenus bruts annuels par unité selon le prix SCP. Dans les conditions actuelles, le revenu net annuel est généralement négatif de $200 à -$800 par unité, sauf si le coût de l'électricité est bien inférieur à $0,04 par kWh.

Limited third party firmware support for Blake256R14 ASICs compared to the extensive SHA-256 ecosystem. Most operators run stock Bitmain firmware. Third party firmware development for niche algorithm ASICs like the DR7 remains minimal due to small market size and limited development incentive.

Oui, les services d'hébergement de MillionMiner acceptent les unités DR7 lorsqu'elles sont disponibles. La tension monophasée de 100 à 240 V et la consommation électrique de 2 730 W sont compatibles avec une infrastructure d'hébergement industrielle standard. Cependant, étant donné la rentabilité négative du DR7 dans les conditions actuelles du marché, les économies d'hébergement ne fonctionnent généralement pas : les frais d'hébergement plus les coûts d'électricité dépassent les revenus du minage. L'hébergement n'a de sens que pour les opérateurs spéculant sur une appréciation significative des prix SCP ou DCR ou pour un positionnement stratégique en matière de sécurité du réseau.

75 dB industrial noise from 4 cooling fans. Comparable to a vacuum cleaner or busy restaurant. Disruptive through walls. Requires sound isolated deployment space: dedicated mining room, garage, outbuilding, warehouse, or commercial facility. Not suitable for office or residential proximity deployment without sound containment infrastructure.

Standard Bitmain ASIC setup. Step one: verify 100 to 240V electrical circuit capable of 2,730W continuous (15 amp 240V or 30 amp 120V). Step two: connect PSU to miner then to electrical outlet. Step three: connect Ethernet cable to router or switch. Step four: find miner IP through router DHCP or IP scanner tool. Step five: open browser, enter miner IP, login to Bitmain web interface. Step six: configure ScPrime or Decred pool URL and wallet address. Step seven: verify hashrate reaches 123+ TH/s within 10 minutes.

For ScPrime (SCP): SCP focused pools support Blake256R14 ASIC hashrate. Pool selection affects fees and payout structure. For Decred (DCR): major mining pools accept DCR hashrate including F2Pool, Poolin, and dedicated Decred pools. Pool fees typically 0.5 to 2 percent. Verify pool specifics before deployment including minimum payout thresholds and hashrate reporting reliability.

Mixed assessment requiring careful analysis. Pro factors: specialized hardware with minimal competition, universal voltage deployment simplicity, Bitmain build quality, potential upside if SCP or DCR prices appreciate meaningfully. Con factors: negative profitability at current conditions, declining Decred PoW relevance, limited third party firmware support, relatively inefficient 21.5 J/TH silicon. Most operators should not purchase the DR7 at current conditions unless they have specific strategic reasons or free electricity scenarios. Speculative operators positioning on coin price appreciation accept the negative current margins in exchange for potential upside.

ScPrime (SCP) is a decentralized cloud storage network using Blake256R14 proof of work for network security alongside its primary file storage functionality. Node operators provide storage capacity, and Blake256R14 miners secure the blockchain that coordinates the storage marketplace. Current SCP network hashrate is small relative to Bitcoin, making individual ASIC hashrate contribution more significant for DR7 operators. SCP price and network economics directly determine DR7 mining profitability since SCP is the primary target coin at current conditions.

Very limited alternatives in production. Blake256R14 is a specialized algorithm with minimal ASIC manufacturer attention relative to mainstream algorithms like SHA-256, Scrypt, or kHeavyHash. Older Bitmain DR series hardware (DR3, DR5) exists in secondary markets at significantly lower hashrate and efficiency. Very few manufacturers have targeted Blake256R14 specifically. For operators committed to Blake256R14 mining, the DR7 represents one of the few current generation options.

For operators seeking positive profitability at current conditions, multiple alternatives across MillionMiner's catalog deliver better economics. For Bitcoin (SHA-256): Antminer S23 318TH for current generation air cooled, S21 XP 270TH for air cooled mid tier. For Kaspa (kHeavyHash): Antminer KS7 for specialized Kaspa mining. For Litecoin and Dogecoin (Scrypt merged mining): Antminer L11 series for profitable dual coin mining. For Aleo (Proof of Succinct Work): IceRiver AE3 for Aleo specialized hardware. For Monero (RandomX): Antminer X5 or X9 for privacy coin mining (noting RandomX ASIC community controversy). For Zcash (Equihash): Antminer Z15 or Z15 Pro for Zcash mining. Most of these alternatives deliver positive profitability at current conditions, making them better economic fits than the DR7 for operators without free electricity or speculative SCP/DCR positioning. For operators specifically committed to Blake256R14 network support, the DR7 remains the primary option despite negative current margins.