{"id":16772,"date":"2026-09-28T16:02:07","date_gmt":"2026-09-28T14:02:07","guid":{"rendered":"https:\/\/www.bitcoinstuffstore.com\/?post_type=product&p=16772"},"modified":"2026-11-09T22:11:06","modified_gmt":"2026-11-09T21:11:06","slug":"bitaxe-naja-duo","status":"publish","type":"product","link":"https:\/\/www.bitcoinstuffstore.com\/en_us\/product\/bitaxe-naja-duo\/","title":{"rendered":"Bitaxe Naja Duo"},"content":{"rendered":"

Buy the Bitaxe Naja Duo: 4.4 TH\/s at 42 watts<\/h3>\n

The Bitaxe Naja Duo is the newest open-source bitcoin solo miner in the Bitaxe family, and the first to run on the BM1373: Bitmain's 3 nm chip from the Antminer S23 generation. Together, two of those chips reach about 4.4 TH\/s at roughly 42 watts. That is four times the hashrate of a Bitaxe Gamma<\/a>, voor iets meer dan het dubbele verbruik.<\/p>\n

Nieuw in mining? Een miner als deze doet mee aan de loterij van het Bitcoin-netwerk. Ongeveer elke tien minuten wordt er een nieuw block gevonden, en wie dat block vindt krijgt de volledige beloning. Met de Naja Duo doe je daar vanaf je eigen bureau aan mee, zonder datacenter en zonder het lawaai van een industri\u00eble miner.<\/p>\n

What makes the Naja Duo different?<\/h4>\n

The number that counts is efficiency: how much energy each terahash costs. Out of the box, the Naja Duo sits at about 9.5 J\/TH. A Bitaxe Gamma and a NerdQaxe++<\/a> zitten allebei rond de 16 J\/TH. Je krijgt dus bijna de hashrate van een NerdQaxe++ bij iets meer dan de helft van het stroomverbruik. De Naja Duo is daarmee de eerste Bitaxe die onder de 10 J\/TH komt.<\/p>\n

Ook de rest van het ontwerp is volwassen geworden. Elke chip heeft een eigen temperatuursensor, zodat ventilator en throttling reageren op de warmste chip in plaats van op een gemiddelde. Een Thermalright AXP90-X47 low-profile koeler met heatpipes ligt over beide chips, met daarop een dunne 92 mm PWM-ventilator van maximaal 22,4 dBA. Op het kleurendisplay van 1,9 inch lees je IP-adres, hashrate, temperatuur en je beste difficulty direct af.<\/p>\n

Honestly: what can you expect?<\/h4>\n

Een Naja Duo is geen winstmachine. Ook met 4,4 TH\/s is de kans dat je zelf een block vindt per dag erg klein, al is die kans wel vier keer zo groot als met een Bitaxe Gamma. Wie liever regelmatig een paar sats binnen ziet komen, koppelt hem aan een pool als Ocean of Braiins. Wie voor de volle blockbeloning gaat, kiest solo mining via Public Pool of CKPool. Wisselen kost een paar klikken in AxeOS.<\/p>\n

Stroom: bij 42 watt continu verbruikt de Naja Duo circa 30 kWh per maand. Dat is ongeveer \u20ac9 per maand bij een gemiddeld Nederlands tarief. Overklokt naar 8 TH\/s loopt het verbruik op naar circa 92 W, goed voor ongeveer \u20ac19,50 per maand.<\/p>\n

Overclocking to 8 TH\/s<\/h4>\n

In AxeOS stel je frequentie en kernspanning zelf in. De fabrieksinstelling is 327 MHz bij 1.000 mV. De geteste bovengrens ligt op 600 MHz bij 1.120 mV, goed voor circa 8 TH\/s bij 92 W (circa 11,5 J\/TH). De meegeleverde voeding van 124 W draait dan op ongeveer 74 procent van zijn vermogen, binnen de gangbare vuistregel van 80 procent voor continu gebruik.<\/p>\n

Verhoog stap voor stap, laat de temperatuur na elke stap stabiliseren en houd beide chips in de gaten. Geen chip is gelijk (de zogeheten silicon lottery), dus niet elk exemplaar haalt dezelfde getallen. Overklokken doe je op eigen risico: schade door overklokken valt niet onder de garantie.<\/p>\n

Up and running in five minutes<\/h4>\n
    \n
  1. Connect the power supply to the XT30 connector and plug it into the wall outlet.<\/li>\n
  2. The miner broadcasts its own Wi-Fi network. Connect to it with your phone or laptop.<\/li>\n
  3. Enter your own Wi-Fi details in AxeOS (2.4 GHz). After a restart, the IP address appears on the display.<\/li>\n
  4. Enter your bitcoin address, preferably a SegWit address starting with bc1q. Use an address from your own hardware wallet<\/a>, so any reward lands straight in self-custody.<\/li>\n
  5. Choose your pool, save, and the Naja Duo starts hashing.<\/li>\n<\/ol>\n

    Firmware updates are installed via the AxeOS settings page or over USB-C. AxeOS works the same on the Naja Duo as on the other Bitaxe models, so our Bitaxe Gamma setup guide<\/a> will get you going here too. Still torn between models? Then read which solo miner suits you<\/a>.<\/p>\n

    Bitaxe is an open-source project from the OSMU community. You can find the designs, firmware and documentation on the official project site bitaxe.org<\/a>.<\/p>\n

    The numbers side by side<\/h4>\n\n\n\n\n\n\n\n\n\n
    Model<\/th>\nHashrate<\/th>\nPower consumption<\/th>\nEfficiency<\/th>\n<\/tr>\n<\/thead>\n
    Bitaxe Supra<\/a><\/td>\nabout 700 GH\/s<\/td>\nabout 15 W<\/td>\nabout 21 J\/TH<\/td>\n<\/tr>\n
    Bitaxe Gamma<\/a><\/td>\nabout 1.1 TH\/s<\/td>\nabout 18 W<\/td>\nabout 16 J\/TH<\/td>\n<\/tr>\n
    Bitaxe Naja Duo<\/strong><\/td>\nabout 4.4 TH\/s<\/td>\nabout 42 W<\/td>\nabout 9.5 J\/TH<\/td>\n<\/tr>\n
    NerdQaxe++<\/a><\/td>\nabout 4.8 TH\/s<\/td>\nabout 76 to 80 W<\/td>\nabout 16 J\/TH<\/td>\n<\/tr>\n
    Canaan Avalon Nano 3S<\/a><\/td>\nabout 6 TH\/s<\/td>\nabout 140 W<\/td>\nabout 23 J\/TH<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Bitaxe Naja Duo specifications<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    Model<\/td>\nBitaxe Naja Duo, model 1201<\/td>\n<\/tr>\n
    Chips<\/td>\n2x Bitmain BM1373 (3 nm)<\/td>\n<\/tr>\n
    Hashrate<\/td>\nabout 4.4 TH\/s at default, up to about 8 TH\/s overclocked<\/td>\n<\/tr>\n
    Power consumption<\/td>\nabout 42 W at default, about 92 W overclocked<\/td>\n<\/tr>\n
    Efficiency<\/td>\nabout 9.5 J\/TH at default<\/td>\n<\/tr>\n
    Cooling<\/td>\nThermalright AXP90-X47 low profile, 92 mm PWM fan (TL-9015B, max. 22.4 dBA)<\/td>\n<\/tr>\n
    Temperature<\/td>\nSeparate sensor per chip<\/td>\n<\/tr>\n
    Voltage regulation<\/td>\n2-phase, Texas Instruments<\/td>\n<\/tr>\n
    Power supply<\/td>\n12 V DC via XT30, included: 12.4 V 10 A (124 W) with EU cord<\/td>\n<\/tr>\n
    Microcontroller<\/td>\nESP32-S3 (N16R8)<\/td>\n<\/tr>\n
    Firmware<\/td>\nESP-Miner with AxeOS, open source<\/td>\n<\/tr>\n
    Connectivity<\/td>\nWiFi 2.4 GHz<\/td>\n<\/tr>\n
    Display<\/td>\n1.9-inch color, 170 x 320 pixels<\/td>\n<\/tr>\n
    Connections<\/td>\nUSB-C for firmware, Boot and Reset buttons<\/td>\n<\/tr>\n
    In the box<\/td>\nNaja Duo (tested and flashed), black stand, power supply with EU cord, quick-start card, sticker sheet<\/td>\n<\/tr>\n
    Assembly<\/td>\nUnited States<\/td>\n<\/tr>\n
    Design<\/td>\nOpen-source hardware, CERN-OHL-S-2.0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    \n

    FAQ: Bitaxe Naja Duo<\/h4>\n
    \n
    \n
    What is the difference between the Bitaxe Naja Duo and the Bitaxe Gamma?<\/div>\n
    \n

    The Bitaxe Gamma has one BM1370 chip and reaches about 1.1 TH\/s at 18 watts. The Naja Duo has two newer BM1373 chips (3 nm) and reaches about 4.4 TH\/s at 42 watts. As a result, the Naja Duo uses roughly 40 percent less power per terahash. It also has a larger color display and a temperature sensor per chip.<\/p>\n<\/div>\n<\/div>\n

    \n
    How much power does the Bitaxe Naja Duo use?<\/div>\n
    \n

    About 42 watts at default. Running day and night, that is roughly 30 kWh per month, or about \u20ac9 in electricity at an average Dutch rate. Overclocked to 8 TH\/s it is about 92 watts, roughly \u20ac19.50 per month.<\/p>\n<\/div>\n<\/div>\n

    \n
    Can I find a bitcoin block with the Bitaxe Naja Duo?<\/div>\n
    \n

    Yes, you can, but the odds are small. At 4.4 TH\/s your chance is four times higher than with a Bitaxe Gamma, and it is still a lottery. So think of the Naja Duo as a way to support the Bitcoin network and learn how mining works, not as a source of income.<\/p>\n<\/div>\n<\/div>\n

    \n
    Is the Bitaxe Naja Duo quiet enough for use at home?<\/div>\n
    \n

    The 92 mm fan reaches a maximum of 22.4 dBA and only speeds up when the chips get warm. At default settings it is perfectly bearable on a desk or in the living room. When overclocked, the fan runs at full speed more often and you will hear it more clearly.<\/p>\n<\/div>\n<\/div>\n

    \n
    Who ships the Bitaxe Naja Duo and how soon will I have it?<\/div>\n
    \n

    The Naja Duo is fulfilled by our partner and shipped from the Netherlands. You simply order and pay at BitcoinStuffStore, including with bitcoin, and we remain your point of contact for questions, warranty and returns. Delivery usually takes 2 to 4 business days.<\/p>\n<\/div>\n<\/div>\n

    \n
    Is the power supply included?<\/div>\n
    \n

    Yes. You get a 12.4 V, 10 A (124 W) power supply with an XT30 plug and EU cord, a black stand, a quick-start card and a sticker sheet. The miner is tested and flashed with firmware in advance, so there is nothing to solder or flash.<\/p>\n<\/div>\n<\/div>\n

    \n
    Can I overclock the Bitaxe Naja Duo?<\/div>\n
    \n

    Yes, via AxeOS. The tested upper limit is 600 MHz at 1,120 mV, good for about 8 TH\/s at 92 W. The included power supply can handle that. Increase step by step and keep an eye on the temperature of both chips. Damage caused by overclocking is not covered by the warranty.<\/p>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

    The Bitaxe Naja Duo is the first Bitaxe with two BM1373 chips (3 nm) and reaches about 4.4 TH\/s at just 42 watts.<\/strong> At about 9.5 J\/TH it is the most efficient open-source solo miner in the Bitaxe family. Plug it in, set up Wi-Fi and it runs.<\/p>\n

      \n
    • 2x BM1373<\/strong> from the Antminer S23 generation, about 4.4 TH\/s<\/li>\n
    • Power consumption<\/strong>: about 42 W (roughly \u20ac9 per month)<\/li>\n
    • Overclockable<\/strong> to about 8 TH\/s via AxeOS<\/li>\n
    • Color display<\/strong> of 1.9 inches and a temperature sensor per chip<\/li>\n
    • Complete<\/strong>: 12.4 V 10 A power supply with EU cord and stand<\/li>\n<\/ul>","protected":false},"featured_media":16765,"comment_status":"open","ping_status":"closed","template":"","meta":{"rank_math_focus_keyword":"bitaxe naja duo, bitaxe naja duo kopen, naja duo","rank_math_title":"Bitaxe Naja Duo kopen: 4,4 TH\/s solo miner op 42 W","rank_math_description":"Bitaxe Naja Duo kopen: twee BM1373-chips, circa 4,4 TH\/s bij 42 W (9,5 J\/TH) en overklokbaar tot 8 TH\/s. 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