The PC-FX is one of the most unique video game systems ever made. Instead of the usual flat & square designs associated with most game systems, NEC decided to use a different approach when designing the PC-FX. One main factor was making the system expandable. Taking a card from the PC market, it was decided to create a tower shaped video game system that offered 3 expansion ports for upgrades and peripherals.
The front expansion slot was to be used for the FX-BMP, a memory expansion module that allowed you to save games to it, rather than the FX internal memory.
The rear and bottom expansion ports were available for connections to the PC-9800 series of computers made by NEC. One of those connections were used for a PC-FX-to-SCSI adapter which allowed the FX to be used as a SCSI CD-ROM drive. To the rear of the unit, you can also find direct A/V, S-VHS connections and the power cord. Voltage and other power information can be found to the top of the rear panel.
In addition to playing PC-FX games, the unit could also play audio CDs (with an expansive CD menu control screen), CD+Gs, and Kodak CDs for viewing your home photos.