The 225 and 250 MHz models were produced in beige and black, whilst the rarer 275 MHz models were only black. External ports: External ports include two LocalTalk/GeoPort serial ports, a DB-25SCSI port, an ADB port, a stereo sound input port, a built-in microphone above the monitor, stereophonic sound output ports, a headphone jack on the front, a stereo miniphone jack on the back. Memory: Unlike the 5400, the 5500 has no soldered on-board memory. There are two JEDEC-standard DIMM slots, which can support up to 64 MB each, for a total maximum memory of 128 MB, 8 less than the 5400. Cache: The processor makes use of 32 kilobytes of L1 cache, with an option for a 256 or 512 KB L2 cache cache operating at the stock 50 MHz bus speed. Hard disk: The 5500 includes a larger ATAhard disk than its predecessor. The computer came stock with a 2 gigabyte hard disk, but the 275 MHz model came with a 4 GB drive; a faster SCSI CD-ROM drive. Video: An accelerated ATI Rage IIc graphics card, containing 2 megabytes of dedicated SGRAM and allowing for resolutions up to 832x624 at 32 bits per pixel, 1152x870 at 16 bpp, and 1280x1024 at 8 bpp. An optional video connector kit is available which adds a DB-15 output port to the back; the output of this display mirrors the main screen, suitable for presentations. Floppy disk: The 5500 includes Apple's standard SuperDrive 1.44 MB floppy drive. CD-ROM: All 5500 configurations include either a 12x or 24x CD-ROM. Multimedia: 5500s came with optional multimedia expansion cards, that connect via internal cables. In European models, these were an S-Video card and a PhilipsTV 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, 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.
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,, sold in Japan and Australia.
*Additional configuration for Japan and Australia: 32 MB DRAM, 4GB 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 550/225 but with a 275 MHz CPU, sold in Europe.
