Main function
- MSX1/2/2+ machine emulation - built-in to various Japanese, domestic, and European models
- SLOT - 16 built-in slots, each with its own device settings
- System Flag - Built-in register for running MSX2+ machine
- Kanji and Hangul - Built-in 4 types of Japanese/Kanji fonts, 2 types of Hangul/Chinese fonts
- General RAM - Built-in 64KB of basic RAM, set in units of 4 pages (16KB)
- Memory Mapper RAM - Built-in standard mapper, capacity setting 64KB ~ 512KB
- Virtual DiskROM - Built-in DOS1/DOS2 integrated ROM, connects and drives the actual disk of the main unit
- Built-in Mega RAM (4MegaBit) compatible with Funna Deluxe Box
- Supports PAC, FMPAC, AUDIO BIOS, and Korean FontPack
- Basic group, MSX-AID, Yamaha Painter built-in