Built-in or internal (e.g., a built-in disk); something equipped or incorporated within a device. Also used as a verb meaning 'to have built in' or 'to equip'.
このPCには内蔵メモリが8GB搭載されている。
This PC has 8GB of built-in memory.
カメラの内蔵フラッシュは明るさが十分だ。
The camera's built-in flash is bright enough.
古い機種は内蔵ディスクが交換しにくい。
Older models make it difficult to replace the built-in disk.