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# Specifications

A collection of specification and reference documents related to accessibility technologies on Apple platforms.

## Topics

### Human Interface Device (HID)

[Brain-computer interface HID reference for connecting to Apple platforms](/documentation/Accessibility/Brain-computer-interface-HID-reference-for-connecting-to-Apple-platforms)

An overview of the human interface device (HID) descriptor for interfacing between brain-computer interface (BCI) hardware devices and Apple devices.

[Braille HID reference for connecting to Apple platforms](/documentation/Accessibility/Braille-HID-reference-for-connecting-to-Apple-platforms)

An overview of the human interface device (HID) descriptor for interfacing between braille devices and Apple devices.


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