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However, as of 2023, Apple still sells power adapters for both MagSafe 1 and MagSafe 2. [31] In 2011, Apple posted a support document about the strain-relief problems with the MPM-1 ("T")-style MagSafe power cables, [32] and issued settlement offer for buyers of Apple 60 W or 85 W MagSafe MPM-1 adapter within the first three years of purchase.
MagSafe is a proprietary, magnetically attached wireless power transfer and accessory-attachment standard developed by Apple Inc. for its iPhone and AirPods product lines. It was announced on October 13, 2020, in conjunction with the iPhone 12 and 12 Pro series.
A MagSafe cable runs from the back of the display and provides 85W of charging for MacBooks. It is the first Cinema Display to use LED backlighting and Mini DisplayPort for video input; however, the LED backlighting is edge-lit as opposed to the fully back-lit CCFL of the previous models, resulting in a lower brightness cd/m 2 output.
The power supply was required to have an output capacitive energy of less than 15.1 µJ and an inductive energy at disconnect of less than 5.3 µJ. [1] The standard defines an AC adapter to power devices requiring from 10 W to 130 W (~20 V × 6.5 A) or (extended voltage option) up to 240 W (60 V × 4 A). [2]
Apple offers various adapters that allow the Lightning connector to be used with other interfaces, such as 30-pin, USB, HDMI, VGA, and SD cards. The Lightning to 30-pin adapter supports only a limited subset of the available 30-pin signals: USB data, USB charging, and analog audio output (via the DAC inside of the adapter [ 27 ] ).
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.
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