came with optional multimedia expansion cards, that connect via internal cables. In European models, these were an S-Video card and a Philips TV tuner card that also had an audio input. Black 5500s with this configuration were marketed as Director Edition in North America and Australasia and the 225 MHz version had the phrase printed on the case. Expansion slots: The 5500 has one PCI card slot. Operating system: The 5500 supports System Software versions 7.5.5 through 9.1 – Mac OS X is not officially supported on this machine. However, it can be run with XPostFacto but is not recommended, due to the 5500's lack of a G3 processor and RAM ceiling of 128 MB. In the general case, 128 MB of RAM is the minimum required for OS X to run (a G3 iMac can run OS X with this amount of RAM), but only on machines with a G3 processor. Models While Apple had by this point retired the "Performa" and "LC" brands as a way of distinguishing different build configurations, they still built different configurations for different markets. Power Macintosh 5500/225: 16 MB DRAM, 2 GB HDD, 12x CD-ROM. Sold worldwide. Additional configuration for education customers: 32 MB DRAM, 24x CD-ROM, Ethernet Additional configuration for Japan: 32 MB DRAM, 4 GB HDD, 33.6k modem, 24x CD-ROM, Ethernet Additional configuration for Europe: 32 MB DRAM, 2 GB HDD, 33.6k modem, 24x CD-ROM, Ethernet Power Macintosh ONE/225: Same as the 5500/225, sold in the UK education market, through an agreement with a UK-based company called Xemplar. Aside from some original Macintosh units, this is possibly the only Apple-manufactured Macintosh to be sold with another company's logo on the front. Power Macintosh 5500/250: Same as the 5500/225 but with a 250 MHz CPU, sold in Japan and Australia. Additional configuration for Japan and Australia: 32 MB DRAM, 4 GB HDD, 24x CD-ROM, Video in, 33.6k modem Additional configuration for U.S. education customers: 32 MB DRAM, 24x CD-ROM, Video in, NTSC out, Ethernet In Australia, a black Directors Edition was sold. Power Macintosh 5500/275: Same as the 5500/225 but with a 275 MHz CPU, sold in Europe. Additional configuration sold: Graphite-colored exterior plastic parts, 32 MB DRAM, 4 GB HDD, 24x CD-ROM, TV/FM tuner, Video in, 33.6k modem Timeline References 5500 Macintosh Performa 5500 Macintosh all-in-ones Computer-related introductions in 1997