Wattage · An Apple number
67W: Apple's number, and why it is 67 and not 65.
67W exists because Apple runs its laptop rail at 20.5V rather than 20V. Multiply 20.5V by 3.27A and you get 67W — the brick that ships in the box with the base-chip MacBook Pro 14″ and, as a build-to-order option, with the MacBook Air.
The profile
Apple's 67W USB-C Power Adapter advertises four fixed rails: 5.2V/3A, 9V/3A, 15V/3A and 20.5V/3.27A. The first three are why it charges an iPhone or iPad at full speed; the fourth is the laptop rail. Because 3.27A is above the 3A cable limit, the full 67W requires an e-marked cable — Apple's USB-C to MagSafe 3 cable qualifies, as does any 5A USB-C to USB-C lead. Details on that chip: e-marked cables.
Third-party chargers almost never say 67W. They say 65W, because they run 20V × 3.25A. The 2W difference is inside measurement noise and no Mac behaves differently on one versus the other — the practical guidance on the 65W page applies to both.
Which Macs ship with it, and what 67W does for each
| Mac | Ships with | On 67W | Apple fast charge? |
|---|---|---|---|
| MacBook Pro 14″, base chip | 67W | Stock behaviour | No — needs 96W or 140W |
| MacBook Pro 14″, Pro/Max chip | 96W or 140W | Charges, slower under sustained load | No |
| MacBook Air 13″ M-series | 30W or 35W dual | Full speed, large headroom | Yes (above the 35W threshold) |
| MacBook Air 15″ | 35W dual or 70W | Full charge; just under the 70W fast-charge tier | No — 70W is the line |
| iPad Pro 13″ M4 | 20W | Full speed at ~30W peak | n/a |
| iPhone 16 / 17 | 20W | Full speed on the 9V rail | Yes |
The rule Apple applies: fast charge is a wattage tier, not a percentage. The 14″ MacBook Pro reaches its 50%-in-30-minutes claim only on a 96W or 140W adapter, which is exactly why the 96W step exists.
What to actually buy
- 67W
Apple 67W USB-C Power Adapter
The reference part. Buy it when you want the exact 20.5V/3.27A behaviour and a warranty path.
- Output
- 67W
- Rails
- 5.2/9/15/20.5V
- Ports
- 1× USB-C
- Cable
- Sold separately
- 67W
mophie speedport 67
Multi-port take on the same tier: a 67W budget spread over USB-C and USB-A ports.
- Output
- 67W total
- Ports
- 3 (USB-C + USB-A)
- Tech
- GaN
- 65W
UGREEN Nexode 65W
The 2W-lower equivalent, usually cheaper and available in multi-port form.
- Output
- 65W
- Rail
- 20V/3.25A
- Tech
- GaN
Adjacent wattages
Down: 60W still charges the same machines, just without cable-limit headroom. Sideways: 70W is the MacBook Air's fast-charge brick, a genuinely different job. Up: 96W unlocks fast charge on the 14″ Pro, and 140W covers the 16″. Background reading on how the Mac decides: laptop USB-C charging, plus the model page for the Apple 67W adapter and the wattage index.
FAQ
Is 65W the same as 67W?
In practice, yes. Apple gets 67W from 20.5V × 3.27A; third parties get 65W from 20V × 3.25A. Both satisfy the same laptops, and macOS reports no difference in charging behaviour.
Does the 67W adapter fast-charge a MacBook Pro 14-inch?
No. Apple's fast-charge claim for the 14-inch requires the 96W or 140W adapter. The 67W charges the machine normally, it just does not hit the 50%-in-30-minutes tier.
Can I charge an iPhone with a 67W adapter?
Yes, safely. The iPhone requests a 9V contract and pulls roughly 20-27W; the adapter supplies exactly that and nothing more.