TV tuner card
Form factor: The Quadra 630 introduced a new case design to the Macintosh family. On the front, a headphone jack and volume up/down buttons are included, a first for the Macintosh. There is an infrared receiver, intended for use with the remote included with the TV tuner card included with the Performa 637CD and 638CD models. The case's motherboard is accessible by opening a cover at the bottom rear of the case and sliding out a drawer that the motherboard was mounted on; this similar to the LC 575.