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The Apple MagSafe power adapter's 1-Wire communication chip is located inside the MagSafe connector itself; the cable does not carry the data line to the power adapter enclosure. [18] The maximum voltage supplied is as follows: 14.5 V DC for the 45 W units supplied with MacBook Air; 16.5 V DC for the 60 W units supplied with MacBook and 13 ...
The MacBook has only two ports, a 3.5 mm headphone jack and a single, multi-purpose USB-C port; it was the first Mac with USB-C. The port supports transmission speeds of up to 5 Gbit/s, and can be used for data, and audio/video output, and charging; it was the first MacBook without MagSafe charging.
Thunderbolt 3 has up to 15 watts of power delivery on copper cables and no power delivery capability on optical cables. Using USB-C on copper cables, it can incorporate USB power delivery, allowing the ports to source or sink up to 100 watts of power. This eliminates the need for a separate power supply from some devices.
An AC adapter or AC/DC adapter (also called a wall charger, power adapter, power brick, or wall wart) [1] is a type of external power supply, often enclosed in a case similar to an AC plug. [2] AC adapters deliver electric power to devices that lack internal components to draw voltage and power from mains power themselves.
On October 30, 2018, Apple released a new MacBook Air with Amber Lake processors, a 13.3-inch Retina display with a resolution of 2560×1600 pixels, Touch ID, and two combination USB-C 3.1 Gen 2/Thunderbolt 3 ports plus one audio jack. The screen displays 48% more color, and the bezels are 50% narrower than the previous generation and occupies ...
This adapter has been included with newer production runs of the first-generation Pencil since October 2022, and is sold separately for existing owners. It also supports the lower-cost Apple Pencil (USB-C), which charges via a built-in USB-C port. Unlike other iPad models with USB-C, it does not support the second-generation Apple Pencil. [10] [8]