Bitaxe GT | 2.15 TH/s

The Bitaxe GT uses the same BM1370 ASIC as the entry models – simply twice. The result is 2.15 TH/s at 43 W, around 20 J/TH. Per terahash that is slightly more power than a single-chip Gamma at roughly 15 J/TH – in exchange you get one and a half times the hash rate in a single device. A 0.91-inch OLED on the board shows the key figures, and everything is configured through AxeOS in the browser. Power comes from a 12V/5A supply rated at 60 W.

43 W is about three times an entry-level device and still a long way from triple-digit wattage. Once both chips are under load the GT is audible – how much is up to the fan curve you set in AxeOS. Consumption works out to roughly 31 kWh a month, so about €8.70 a month at €0.28/kWh.

If you mine solo, hash rate does not buy certainty – it buys lottery tickets. Every hash is an attempt at the next valid Bitcoin block. If it lands, the full 3.125 BTC plus every transaction fee in that block goes straight to your own address instead of being shared through a pool. At 2.15 TH/s you hold about one and a half times as many tickets per round as with a single-chip Bitaxe, for around €8.70 of electricity a month. That does not make a hit likely – what is certain is that your device confirms transactions and spreads the network across more shoulders in the meantime.

• Current chip generation, doubled up: two BM1370 instead of one, around 2.15 TH/s at about 20 J/TH from a single unit.
• One device instead of two: one power supply, one Wi-Fi login, one worker in the pool, one firmware version to maintain.
• Readings without a browser: the 0.91-inch OLED shows the operating state on the device, for example the IP address after a restart.
• Openly documented: AxeOS and the Bitaxe design are open source. Settings, updates and troubleshooting stay with you, not with a vendor.

Both chips share the power supply, the voltage rails and the airflow. AxeOS therefore reports one combined hash rate, and every change to frequency or voltage affects both chips – including the heat that has to leave the board together.

Day to day that is an advantage: one cable, one entry in the router, one dashboard. For tinkerers it means more heat over a smaller area than on a single-chip model. If you plan to push it, find a cool, open spot first and only then start changing settings.

Setup needs a power socket, 2.4 GHz Wi-Fi and a browser – no extra computer, because AxeOS runs on the miner itself. Every step is shown with screenshots in the setup guide.

For everyone past the first steps: the first miner runs, the numbers on the dashboard are familiar, and now you want more hash rate – without fan noise in the next room. It also makes sense as a first device if you already know that 1.3 TH/s will not be enough.

It is less suitable if you count every watt or want the most discreet device for a living room – then the Bitaxe Gamma at 15 W remains the quieter choice. If maximum hash rate per device is the goal, the Bitaxe Supra Hex 702 delivers 4.2 TH/s from six chips – at 90 W, with efficiency close to the GT at roughly 21.43 versus 20 J/TH.

Included are the miner, the matching 12V/5A power supply, a stand and a quick start guide – nothing to buy on top to get going. From your router you need a 2.4 GHz network, from your pool the credentials, and the Bitcoin address is yours.

Plan for some space: the GT should stand free rather than inside a closed cabinet. A socket near the router is convenient but not required – Wi-Fi is on board.

Out of the box the GT is complete. People who keep building their setup usually go in one of two directions:

• Cooling: lower temperatures mean lower fan speed and more headroom before you touch the clock.
• Bitcoin nodes: your own node at home, so you do not only hash but also validate yourself.

The Bitaxe GT is the choice when you want more hash rate without leaving the small format behind: two current ASICs, 2.15 TH/s, 43 W, open firmware and your own Bitcoin address in one device.