The Bitaxe Encyclopedia: Every Model, Revision & Chip (CSV/JSON)

This is The Bitaxe Encyclopedia: the canonical model and hardware-revision database for the open-source Bitaxe and Nerd miner families. The Bitaxe was created by skot and is stewarded by the bitaxeorg / Open Source Miners United (OSMU) community — we built this reference to complete the one piece the project never published: a single, sortable list of every model, every hardware revision, and the exact ASIC chip in each one.

Each row carries the verified chip (Gamma = BM1370, Supra = BM1368, Ultra = BM1366, Max = BM1397), chip count, hashrate / efficiency / power band, input voltage, lifecycle status, and the original designer credit. Where a model maps to something we stock, the live Canadian price links straight to it. The whole table is free to download as CSV and JSON under a CC BY 4.0 licence — read the Mining Data Trust & Methodology page for how it is sourced and verified.

Quick answer

The Bitaxe is the open-source single-chip Bitcoin solo miner created by skot. The current line runs Bitmain ASICs: the Gamma uses one BM1370 (~1.2 TH/s), the Supra one BM1368 (~0.7 TH/s), the Ultra one BM1366 (~0.5 TH/s) and the legacy Max a BM1397. Multi-chip boards (Hex, GT, NerdQAxe, NerdOctaxe) chain 2–8 of the same chips.

This page is the full model + hardware-revision database — every chip, count, hashrate and revision in one table, free to download as CSV/JSON.

The Bitaxe is the first fully open-source Bitcoin ASIC miner, created by skot and stewarded by the bitaxeorg / Open Source Miners United (OSMU) community. The Nerd family — NerdAxe, NerdQAxe and NerdOctaxe — are community forks maintained by BitMaker-hub, shufps, pmaxuw and Patsch91; the Ember One hashboard is from the 256 Foundation. We publish this database to complete the model reference the project itself never built, and to keep the chip facts straight. All credit for the designs belongs to their creators.

24 model/revision rows across 23 models · last reviewed June 2026 · Download CSV · Download JSON

Chip facts (verified): Gamma = BM1370 · Supra = BM1368 · Ultra = BM1366 · Max = BM1397. The GT and Gamma Duo are two BM1370 chips — there is no such chip as "BM1371". ASIC core voltage is regulated per voltage domain, never per individual chip.

Model	Rev	ASIC chip	Chips	Hashrate	Efficiency	Power	Input	Status	Designed by	From (CAD)
Bitaxe — single-chip
Bitaxe MaxS17-class silicon; the original single-chip Bitaxe.	100–104	`BM1397`	1	250–450 GH/s	~40 J/TH	~15 W	5V DC barrel	Legacy	skot (bitaxeorg)	—
Bitaxe UltraS19 XP-class silicon. D-Central stocks "The Bitaxe" Supra/Gamma flagship; the Ultra board is the 200-series reference.	201–205	`BM1366`	1	~500 GH/s	~21 J/TH	~15 W	5V DC barrel	Active	skot (bitaxeorg)	from $184.99
Bitaxe SupraS21-class silicon. The Supra config of "The Bitaxe".	401–403	`BM1368`	1	625–775 GH/s	~21 J/TH	~15 W	5V DC barrel	Active	skot (bitaxeorg)	from $184.99
Bitaxe GammaS21 Pro-class silicon (5nm BM1370). First Gamma board series.	601	`BM1370`	1	1.0–1.2 TH/s	~15 J/TH	~21 W	5V DC barrel	Active	skot (bitaxeorg)	from $184.99
Bitaxe GammaCurrent Gamma revision; same BM1370, refined board.	602	`BM1370`	1	1.2–1.3 TH/s	~15 J/TH	~21 W	5V DC barrel	Latest	skot (bitaxeorg)	from $184.99
Bitaxe Touch (Gamma)Adds a 4.3" capacitive touchscreen (8 rotating screens). BM1370.	—	`BM1370`	1	~1.0 TH/s	~15 J/TH	~21 W	5V DC barrel	Active	skot (bitaxeorg)	—
Bitaxe Touch (Supra)Touchscreen Supra. BM1368.	—	`BM1368`	1	~700 GH/s	~21 J/TH	~15 W	5V DC barrel	Active	skot (bitaxeorg)	—
Bitaxe — multi-chip
Bitaxe Gamma DuoTwo BM1370 on one board.	650	`BM1370`	2	~1.63 TH/s	~16 J/TH	~26 W	5V DC barrel	Active	skot (bitaxeorg)	—
Bitaxe GT (Gamma Turbo)2× BM1370 (Gamma Turbo). NOT a single chip; there is no "BM1371".	801	`BM1370`	2	2.15 TH/s (up to ~3.06 TH/s OC)	~18 J/TH	~43 W	12V (XT30 / barrel)	Active	skot (bitaxeorg)	$269.99
Bitaxe Turbo Touch (GT)GT 801 platform with touchscreen (BAP-GT-TOUCH firmware).	801	`BM1370`	2	2.15 TH/s	~18 J/TH	~43 W	12V	Active	skot (bitaxeorg)	—
Bitaxe Ultra HexThe Hex D-Central stocks: 6× BM1366 (Ultra Hex). ~3 TH/s.	300	`BM1366`	6	~3 TH/s	~22 J/TH	80–100 W	12V DC	Active	skot (bitaxeorg)	from $389.99
Bitaxe Supra Hex6× BM1368 variant (not the same SKU as the Ultra Hex).	702	`BM1368`	6	~4.2 TH/s	~21 J/TH	~90 W	12V DC	Active	skot (bitaxeorg)	—
Nerd family
NerdAxe GammaNerdAxe with BM1370 (a Bitaxe-lineage fork; ESP-Miner-NerdAxe).	—	`BM1370`	1	~1.2 TH/s	~21 J/TH	~25 W	5V/12V	Active	pmaxuw / BitMaker-hub	from $169.99
NerdAxe UltraNerdAxe with BM1366.	—	`BM1366`	1	~0.5 TH/s	~21 J/TH	~15 W	5V	Active	pmaxuw / BitMaker-hub	—
NerdQAxe (original)Quad-chip. D-Central also stocks the related QAxe (4× BM1366, shufps).	—	`BM1368`	4	~2.4 TH/s	~23 J/TH	~55 W	12V	Active	BitMaker-hub	$319.99
NerdQAxe+4× BM1368 (ESP-Miner-NerdQAxePlus). Rev 6.1 is the VRM-revised board.	Rev 5 / 6.1	`BM1368`	4	~2.4 TH/s	~23 J/TH	~55 W	12V (XT30)	Active	shufps	$529.99
NerdQAxe++4× BM1370. D-Central stocks Le NerdQAxe+ (FR) and the NerdQAxe+; the ++ is the BM1370 quad.	Rev 6.1	`BM1370`	4	4.8–6.5 TH/s	~17 J/TH	~80 W	12V (XT30)	Active	shufps	—
NerdOctaxe Gamma8× BM1370 (NerdOCTAXE-Gamma). A NerdOctaxe Plus uses 8× BM1368.	—	`BM1370`	8	6–12 TH/s	~17 J/TH	160–200 W	12V	Active	Patsch91	$849.99
NerdNOSBM1397 hat for the TTGO T-Display S3; headless, passive.	—	`BM1397`	1	80–130 GH/s	~40 J/TH	~8 W (USB-C)	USB-C 5V	Active	benjamin-wilson / WantClue	$94.99
NerdMiner v2No ASIC — a CPU lottery/education device. Kilohashes, not gigahashes.	—	`None (ESP32 CPU)`	0	~78–120 KH/s	n/a	~2–5 W	USB-C 5V	Active	BitMaker-hub	$49.99
Reference & companion
PiAxeBM1366 on a Raspberry Pi HAT (shufps/piaxe).	—	`BM1366`	1	~500 GH/s	~21 J/TH	~15 W	Raspberry Pi HAT	Active	shufps	$160.00
QAxe (original)4× BM1366 quad-ASIC (CERN-OHL-S-2.0). Predates the NerdQAxe line.	—	`BM1366`	4	~1.7–1.8 TH/s	~22 J/TH	~40 W	12V	Legacy	skot / shufps	$319.99
Ember One 00Open-source HASHBOARD (not a complete miner); needs a Libre Board / RPi. GPL.	—	`BM1362`	12	~3.5 TH/s	~28 J/TH	~100 W	External control board	Active	256 Foundation	—
D-Central open hardware
DCENT_axeA Rust (ESP-IDF) firmware effort for the open Bitaxe/Nerd boards, with MCP/AI control. GPL-3.0, closed beta, public beta planned summer 2026 — waitlist, not pre-order; experimental, not production-ready. Built squarely on @skot's ESP-Miner / AxeOS and the OSMU community.	beta	`BM1397 / BM1366 / BM1368 / BM1370`	1	depends on board	depends on board	depends on board	per board	Experimental (closed beta)	D-Central — on the shoulders of skot / OSMU	—

Where DCENT_axe fits

D-Central's own contribution to this ecosystem is DCENT_axe — an experimental Rust (ESP-IDF) firmware for the open Bitaxe and Nerd boards, with MCP / AI control. It is GPL-3.0 and in closed beta, with public beta planned for summer 2026 (an estimate, not a guarantee). It exists only because skot's ESP-Miner / AxeOS and the OSMU community built the ground beneath it — we are standing on their shoulders, not competing with them. You can read more on the DCENT_axe page or join the open-firmware waitlist there.

Get one running

We have shipped Bitaxes since the Mesh Stand era and repair the boards on our own Laval bench. If a row above maps to a model we stock, the live CAD price links straight to it. New to solo mining? The Bitaxe Starter Build bundles the board, case, PSU and heatsink, and the which-Bitaxe picker routes you to the right model. See every model in the Bitaxe Hub.

Frequently asked

What chip is in the Bitaxe Gamma?

The Gamma uses a single BM1370 — the same 5nm Bitmain ASIC found in the Antminer S21 Pro, running at roughly 1.0–1.3 TH/s around 21 W. The Supra uses a BM1368, the Ultra a BM1366, and the legacy Max a BM1397.

Is the Bitaxe GT a single chip?

No. The GT (Gamma Turbo, 800 series) and the Gamma Duo each carry two BM1370 chips. There is no chip called "BM1371" — that label is a common error; the GT is simply 2× BM1370.

What is the difference between Gamma rev 601 and 602?

Both run the same BM1370 ASIC. The 602 is the refined current board revision and tends to sit at the top of the 1.2–1.3 TH/s band; the 601 was the first Gamma series. If you already own a 601, it is not obsolete — same silicon.

Who made the Bitaxe?

The Bitaxe was created by skot and is stewarded by the bitaxeorg / Open Source Miners United (OSMU) community under open hardware (CERN-OHL-S) and firmware (GPL-3.0 ESP-Miner / AxeOS) licences. The Nerd family are community forks by BitMaker-hub, shufps, pmaxuw and Patsch91.

How is ASIC voltage controlled — per chip?

Per voltage domain, not per chip. On single-chip Bitaxes the whole ASIC shares one regulated core rail; on multi-chip boards groups of chips share domains. No Bitcoin ASIC exposes per-individual-chip voltage control.

Which Bitaxe should a beginner buy?

For most first-time solo miners the Gamma is the efficiency sweet spot; the Supra is a lower-power, quieter step down. Use the which-Bitaxe picker, or start with the Starter Build bundle.

Cite this dataset

This dataset is free to use, share and adapt under the Creative Commons Attribution 4.0 International (CC BY 4.0) licence — please credit D-Central and link back.

Suggested attribution:

D-Central Technologies. "The Bitaxe Encyclopedia." d-central.tech, updated 2026-06-16. Licensed under CC BY 4.0. Accessed 16 June 2026. https://d-central.tech/data/bitaxe-encyclopedia/

Related products, repair, and setup paths

Last reviewed June 13, 2026.