One of the addons for the PC engine. The CD-Rom enabled the tiny PCE to play CD games, once both systems were connected with the interface unit. For this, both the PC Engine and the CD-Rom were fixed into this suitcase-like device. Furthemore, other variations of CD-Roms are available such as standalone-CD-Roms-drives and the Duo-systems, enabling players to use both HU-Cards and CDs in one device.