Power Macintosh 5400

The Power Macintosh 5400 (also sold under variations of the name Performa 5400) is a personal computer designed, manufactured and sold by Apple Computer from April 1996 to March 1998. The 5400 is an all-in-one computer with an integrated monitor, and replaced the Power Macintosh 5200 LC in that role. It is largely identical to the Power Macintosh 6400 internally, which is essentially the same computer (the "Alchemy" platform) in a tower case. This is the first all-in-one Macintosh to support PCI expansion, replacing the Processor Direct Slot.

Unlike other Power Macintosh machines of the time, the 5400 was only sold to education markets. Macintosh Performa-branded variants were generally only sold in Europe, Asia and Australia while the less-powerful Performa 5300CD remained on sale in the Americas for much of 1996. This reflected a de-emphasizing of sales of all-in-one form factor computers into the consumer market, something Apple stopped doing altogether until the introduction of the iMac G3 in the second half of 1998.

The more powerful Power Macintosh 5500 was introduced in April 1997, and both computers continued to be sold alongside each other. When the education-only Power Macintosh G3 All-In-One was introduced in early 1998, the 5400 and 5500 were both discontinued.