Description
XT30 Female to DC Power Cable 12V — The Missing Link for XT30-Powered Miners
The newest generation of open-source miners — the Bitaxe GT Gamma Turbo and the NerdQAxe++ Revision 6.1 — switched to XT30 power connectors. It is a smart move: XT30 is rated for 30A continuous, locks securely, and is nearly impossible to plug in backwards. But it means your existing 12V DC barrel-jack power supply will not connect without this cable.
The XT30 Female to DC Power Cable bridges the gap. One end is an XT30 female connector that plugs into your miner. The other end is a standard DC barrel connector (5.5×2.1mm / 5.5×2.5mm female) that accepts any 12V DC power supply with a male barrel plug. If you already own a 12V adapter from a previous build, this cable lets you use it with XT30-equipped miners without buying a new PSU. Simple, durable, and essential.
- Built for the XT30 Generation — The Bitaxe GT and NerdQAxe++ Rev 6.1 both adopted the XT30 connector for its higher current handling and secure fit. This cable is purpose-built for these miners — plug the XT30 female into the miner’s XT30 male outlet, connect your 12V supply to the DC barrel end, and start hashing.
- Use Your Existing 12V Power Supply — Already have a 12V DC adapter from a Bitaxe Hex, NerdQAxe+, or other barrel-jack miner? This cable lets you reuse it with XT30-equipped miners. No need to source a specialized XT30 power supply — just bridge the connector gap and use the 12V supply you already own.
- Dual Barrel Compatibility — The DC barrel end accepts both 5.5×2.1mm and 5.5×2.5mm male plugs, covering the two most common barrel jack sizes in the 12V adapter world. One cable handles both standards.
- Secure, Polarized Connection — The XT30 connector is keyed and can only be inserted one way — no risk of reversed polarity. It also provides a firm friction fit that will not accidentally disconnect from vibration or a bumped desk. Your miner stays powered.
- Durable Construction — Built to handle the continuous current demands of always-on mining hardware. These miners run 24/7 — the cable connecting them to power needs to be built accordingly.
Technical Specifications
| Specification | Value |
|---|---|
| Connector A (Miner side) | XT30 female |
| Connector B (PSU side) | DC barrel 5.5×2.1mm / 5.5×2.5mm (female) |
| Voltage | 12V DC |
| XT30 Current Rating | 30A continuous (connector rated) |
| Polarity | Keyed / polarized (cannot be reversed) |
| Primary Use Case | Connecting XT30-equipped miners to standard 12V DC barrel-jack power supplies |
Compatibility — What This Cable Connects
| Device | Power Input | Compatible? |
|---|---|---|
| Bitaxe GT Gamma Turbo | XT30 | Yes |
| NerdQAxe++ Revision 6.1 | XT30 | Yes |
| NerdQAxe+ | 12V DC barrel jack | No — already uses barrel jack, no adapter needed |
| Bitaxe Hex | 12V DC barrel jack | No — already uses barrel jack, no adapter needed |
| Bitaxe Gamma/Supra/Ultra | 5V 2.1mm barrel jack | No — 5V device, not 12V |
| NerdOctaxe Gamma | XT60 | No — uses XT60, not XT30 |
| NerdAxe | USB-C | No — USB-C powered |
Important note on the NerdOctaxe Gamma: The NerdOctaxe uses an XT60 connector, not XT30. XT30 and XT60 are physically different sizes and are not interchangeable. This cable will not fit the NerdOctaxe. The XT60 is a larger connector rated for 60A, matching the NerdOctaxe’s higher power requirements (8 chips, 9.6-12 TH/s).
Frequently Asked Questions
Why did the Bitaxe GT and NerdQAxe++ switch to XT30 connectors?
As open-source miners get more powerful with more chips and higher hashrates, they draw more current. The XT30 connector is rated for 30A continuous — significantly more than a standard DC barrel jack. It also locks into place with friction and is polarized (keyed), making it impossible to plug in backwards. For miners pushing 50W+ at 12V, XT30 is the right connector for the job. The RC/drone hobby community has used XT-series connectors for years precisely because they handle high current reliably.
Can I use an XT30 power supply directly instead of this adapter cable?
Yes, if you have a 12V power supply with a native XT30 male output, you can plug directly into the miner without this cable. This cable exists specifically for miners who already own a 12V DC barrel-jack power supply and want to reuse it with XT30-equipped hardware. It is an adapter, not a requirement — just a convenient bridge between connector types.
Will this cable fit the NerdOctaxe Gamma?
No. The NerdOctaxe Gamma uses an XT60 connector, which is physically larger than the XT30. XT30 and XT60 are different sizes in the same connector family — the number refers to the amp rating (30A vs 60A). They are not cross-compatible. The NerdOctaxe’s 8-chip design requires the higher-current XT60 to handle its power draw safely.
What power supply specs do I need for the Bitaxe GT or NerdQAxe++?
Both miners run on 12V DC. For the Bitaxe GT (2x BM1370 chips, ~2.15 TH/s), a 12V supply rated for at least 5A (60W) is recommended. For the NerdQAxe++ (4x BM1370 chips, ~6 TH/s), aim for a 12V supply rated for at least 10A (120W) to handle peak draw with headroom. Always check the specific power recommendations on each miner’s product page for the latest guidance.
I have a 6-pin PCIe to DC cable from D-Central. Can I chain it with this XT30 cable?
Technically you could connect the 6-Pin PCIe to DC Cable (barrel output) into this XT30 cable (barrel input) to go from an APW3 PSU to an XT30 miner. It will work, but two adapter cables in series adds connection points. For the cleanest setup, consider using a 12V power supply with sufficient amperage connected directly to this XT30 adapter cable — or source a PSU with native XT30 output. That said, the APW3 has plenty of power headroom, so the chained approach is a perfectly functional option if you already own both cables.
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