Power Macintosh 6400
| A Macintosh Performa 6400/200. | |
| Also known as | "InstaTower" | 
|---|---|
| Developer | Apple Computer | 
| Product family | Power Macintosh, Performa | 
| Release date | August 7, 1996 | 
| Introductory price | US$2,400 (equivalent to $4,812 in 2024) | 
| Discontinued | August 1, 1997 | 
| Operating system | System 7.5.3 - Mac OS 9.1 With PowerPC G3 upgrade, Mac OS 9.2.2 | 
| CPU | PowerPC 603ev @ 180 or 200 MHz | 
| Memory | 16 MB, expandable to 136 MB (70 ns 168-pin DIMM) | 
| Dimensions | Height: 16 inches (41 cm) Width: 7.8 inches (20 cm) Depth: 16.9 inches (43 cm) | 
| Weight | 44.5 pounds (20.2 kg) | 
| Successor | Power Macintosh 6500 | 
The Power Macintosh 6400 (also sold under variations of the name Performa 6400) is a personal computer designed, manufactured and sold by Apple Computer from August 1996 to August 1997. It is the only Macintosh mini-tower system to be branded as a Performa, and alongside the Performa 6360 was the last new Performa-branded model introduced by Apple.
The 6400 and its Performa variants were discontinued in favor of the uniformly-named Power Macintosh 6500 in August 1997.