How many PCI slots of what type and speed does each Power Mac G3 have?

All Platinum/Beige Power Macintosh G3 models have three 33 MHz PCI slots and all "Blue & White" models have three open 33 MHz PCI slots as well as a 66 MHz PCI slot that is occupied by the graphics card.

The Platinum/Beige Power Macintosh G3 models also have a "personality card" slot that is occupied by either a "Whisper" personality card that provides audio input/output or a "Wings" personality card that provides audio and video input/output.

Complete details on the PCI slots and default personality cards are provided on the specs page for each model, but also are provided below for your convenience:

Power Mac G3	PCI Slots	Default Personality Card
233 Desktop	3 33 MHz	Whisper
233 Minitower	3 33 MHz	Whisper
266 Desktop	3 33 MHz	Whisper
266 Minitower	3 33 MHz	Wings
300 Desktop	3 33 MHz	Whisper
300 Minitower	3 33 MHz	Whisper, Wings*
333 Minitower	3 33 MHz	Whisper
233 All-in-One	3 33 MHz	Whisper
266 All-in-One	3 33 MHz	Wings
300 (Blue & White)	3 33 MHz, 1 66 MHz	N/A
350 (Blue & White)	3 33 MHz, 1 66 MHz	N/A
400 (Blue & White)	3 33 MHz, 1 66 MHz	N/A
450 (Blue & White)	3 33 MHz, 1 66 MHz	N/A

* Please refer to the specs page for details regarding which configurations had which personality card standard.

Site sponsors Other World Computing and Operator Headgap Systems both sell a variety of Mac-compatible PCI cards. Please double check to ensure a particular PCI card of interest is compatible with both your Mac and your operating system.