SSDS3

The Super SD System 3 (SSDS3) is an all-in-one device that allows users to experience the full range of NEC's PC-Engine, TurboGrafx-16, PC-Engine CD, and Turbo-CD software. It simulates all aspects of the hardware and contains such features as System & Arcade Card simulation, per game save file storage, and full RGB output.

Firmware can be downloaded here Please note that you need to register your device and if firmware is not present after registering it means you are on the most current firmware already.

Manual is located here