Nexus S1-01 | 5 TH/s

The Nexus S1-01 is a compact solo miner for the home with two BM1373 ASICs by Bitmain. It delivers around 5 TH/s on roughly 75 to 85 W, about 15 to 16 J/TH. A heat-pipe cooler and a large fan keep the chips cool, and a colour display shows hash rate, power and temperature right on the device.

It is run through an ESP32-S3 with the open-source NMAxe firmware in your browser. It joins your home network over 2.4 GHz Wi-Fi or an Ethernet cable. You set pool, worker and Bitcoin address yourself; you need no account and no cloud. The Nexus S1-01 is available to pre-order and is expected to ship from 10 December 2026.

The stated figures are around 5 TH/s on roughly 75 W. In the product photo, the display of the running unit shows 5.2 TH/s on 84.9 W at the 12 V input, which is 16.3 W per TH/s. We therefore work with around 80 W and about 16 J/TH. Actual values depend on the individual unit, the room temperature and the settings.

• Hash rate: around 5 TH/s.
• Power draw: roughly 75 to 85 W.
• Efficiency: about 15 to 16 J/TH.
• Factory setting: 600 MHz clock and 1150 mV core voltage.

Instead of a plain heatsink, the Nexus S1-01 carries a heat-pipe cooler of the kind known from PC processors. Heat pipes move the heat from the chips into a dense fin stack, and a large fan pushes air through it. The firmware sets the fan speed by temperature. In the product photo the miner runs at 59 °C with the fan at 1,495 rpm.

Board and cooler sit at an angle in a black stand with a honeycomb structure. That keeps the display easy to read and lets air flow freely through the cooler.

The core voltage comes from a three-phase voltage regulator built around the TPS546D24A by Texas Instruments. Three phases share the current, which takes load off the individual components. The two chips are connected in series, so only half as much current flows as with a parallel connection. How stable that voltage stays decides hash rate, temperature and error rate.

Power enters the Nexus S1-01 at 12 V through an XT30 plug, protected by a 15 A blade fuse on the board. The included power supply delivers 12 V and 10 A, up to 120 W, which leaves headroom above the roughly 85 W of the miner.

The colour display shows the values that matter for mining: hash rate, best difficulty, input and core voltage, current, power, efficiency in W/TH, temperature, fan speed and the IP address on your home network. For a quick look you do not need to open a browser.

Out of the box it runs the NMAxe firmware by the NMMiner team, an open-source offshoot of the Bitaxe firmware under GPL-3.0. Its web interface in the style of AxeOS shows statistics, manages several miners on a swarm page and offers the performance profiles ECO, Normal and Turbo. If you like to fine-tune yourself, you set the clock between 325 and 800 MHz and the core voltage between 900 and 1250 mV. Updates are installed through the web interface.

• Chips: two BM1373 instead of four BM1370.
• Hash rate: around 5 instead of around 4.8 TH/s.
• Power: both roughly 80 W, and efficiency is around 16 J/TH for both.
• Cooling: heat-pipe cooler instead of a heatsink with a 92 mm fan.
• Network: Wi-Fi plus an Ethernet port instead of Wi-Fi only.
• Firmware: NMAxe instead of AxeOS, both open source and used in the browser.

The NerdQaxe++ is the proven four-chip miner of the NerdQaxe line. The Nexus S1-01 plays in the same class but relies on two BM1373 chips, a heat-pipe cooler and an Ethernet port.

Running around the clock, the Nexus S1-01 uses about 58 kWh a month. What that costs at your tariff and how hash rate and power compare is worked out by the mining calculator with your own figures.

All of those roughly 80 W end up as heat in the room, so in winter the miner helps heat it. Stand it in the open, let the fan draw air freely, and do not put it in a closed cabinet.

Every hash is a ticket in the same draw the large farms take part in. If your Nexus S1-01 finds the matching block, the full reward of currently 3.125 BTC plus transaction fees goes to your own address, undivided and with no provider in between. At around 5 TH/s you hold about four times as many tickets as with a Bitaxe Gamma. That does not change the order of magnitude of the chance; solo mining stays a matter of luck. How small it is, is shown in the article on the odds of finding a block.

Our solo pool pool.bitaxe.de runs in Frankfurt and charges a 0 % fee. The principle is explained in Bitcoin solo mining.

The Nexus S1-01 is sold as a pre-order. Shipping is expected to start on 10 December 2026, and orders go out in the order they were placed. You secure a unit from the first delivery, but you will have to wait until December for it.

Power, your home network and a browser are all you need for setup. Power supply and EU power cord are in the box.

For everyone who wants clearly more hash rate than a Bitaxe from one compact device, without moving to a loud industrial machine. Around 5 TH/s, one power supply, one display and one web interface.

It is less of a fit when every watt counts or the device is meant for the bedroom: then a Bitaxe Gamma is the more frugal and quieter choice. And if you want twice the hash rate, take the Nexus S1-02 with four BM1373 chips and around 10 TH/s.

Two BM1373 chips, around 5 TH/s at roughly 80 W, a heat-pipe cooler, Wi-Fi and Ethernet and a display with all the key values: the Nexus S1-01 is the compact step from a Bitaxe to five terahashes.